Welcome to the world of truly irresistible treats! These Cornflake Marshmallow Cookies are a textural masterpiece, offering an incredible combination of chewy, crunchy, and gloriously gooey deliciousness. Imagine soft, melted marshmallows mingling with crispy cornflake clusters and decadent chocolate chips, all baked into a cookie with perfect crisp edges and a wonderfully soft center. This isn’t just a cookie; it’s an experience, a delightful symphony of flavors and textures that will captivate your taste buds from the very first bite. Get ready to bake a batch of these extraordinary cornflake marshmallow chocolate chip cookies – they are absolutely over-the-top delicious!
There’s a reason these cookies have garnered a cult following. They strike the perfect balance between classic comfort and innovative flavor. The satisfying crunch of the cornflakes provides a playful contrast to the tender, melt-in-your-mouth marshmallow, while the rich chocolate chips tie all the elements together beautifully. Making these gourmet marshmallow cornflake cookies is surprisingly simple, utilizing basic pantry staples you likely already have on hand. Whether you’re a seasoned baker or just starting out, you can effortlessly whip up a batch of these heavenly cookies whenever a craving strikes, bringing joy to everyone who tries them.
Unlocking the Secret: Copycat Milk Bar Cornflake Marshmallow Cookies at Home
My culinary journey often leads me to seek out iconic food destinations, and a trip to New York City wouldn’t be complete without a visit to Momofuku Milk Bar. This legendary bakery is renowned for its innovative and unforgettable treats, and their Cornflake Marshmallow Cookie was at the very top of my must-try list. After extensive research and hearing countless rave reviews, I knew this unique cookie was a culinary challenge I had to undertake. The moment I tasted its distinct blend of sweet, salty, and textural magic, I was utterly hooked. I knew, without a doubt, that I needed to recreate this sensation in my own kitchen so I could savor it anytime, anywhere.
Replicating the iconic Milk Bar Cornflake Marshmallow Cookies became my personal baking Everest. It wasn’t an easy feat; I experimented with numerous versions, tweaking ingredients and techniques, before finally perfecting a recipe that truly captured the essence of the original. My goal was not just to copy, but to elevate, creating a homemade version that was not only incredibly delicious but also accessible for home bakers. This recipe is the culmination of that dedicated effort, yielding cookies that boast the signature chewy, crunchy, and gooey qualities that make Milk Bar’s version so celebrated. Prepare to be amazed – many claim my version is even better, and definitely easier to make right in your own kitchen!

Why You Absolutely Must Try This Cornflake Marshmallow Cookie Recipe Today
If you need further convincing to dive into the delightful world of these cookies, here are compelling reasons why you should gather your ingredients and whip up a batch this very day:
- An Unforgettable Flavor and Texture Profile: These cookies are a masterclass in contrasting textures and harmonizing flavors. The soft, caramelized sweetness of the melted marshmallows provides an incredible gooeyness that perfectly complements the satisfying crunch of the toasted cornflakes. Each bite is an adventure, a delightful dance between sweet, salty, crispy, and chewy, making for an incredibly unique and utterly addictive treat. You won’t forget the experience.
- Remarkably Versatile and Fun to Customize: One of the many joys of this recipe is its adaptability. While delicious as written, it serves as an excellent base for your creative culinary experiments. Feel free to add chopped toasted nuts like pecans or walnuts for an extra layer of crunch and nutty flavor. Swap out the mini chocolate chips for butterscotch, white chocolate, or even dark chocolate chunks to tailor the sweetness and richness to your preference. Each variation promises a delicious cookie, ensuring endless fun and new favorites.
- Effortlessly Simple to Bake: Don’t let the gourmet appearance fool you; this recipe is surprisingly easy to follow. It builds upon a classic chocolate chip cookie dough base, which is then elevated with the ingenious addition of homemade cornflake crunch and delightful mini marshmallows. The steps are straightforward, making it an approachable recipe for bakers of all skill levels. You’ll be amazed at how quickly you can create such an impressive and delicious dessert.
- Perfect for Any Occasion: Whether you’re looking for a crowd-pleasing dessert for a party, a comforting snack for a cozy evening, or a special treat to share with loved ones, these Cornflake Marshmallow Cookies fit the bill. Their unique appeal makes them a conversation starter, and their irresistible taste guarantees they’ll disappear quickly from any plate.
Essential Ingredients for Your Perfect Cornflake Chocolate Chip Cookies
Crafting these exceptional cookies begins with selecting the right ingredients. Here’s a breakdown of what you’ll need to create the perfect dough:
Butter: You will need 1 cup (which is equivalent to 2 sticks) of unsalted butter. Ensure your butter is at room temperature before you begin. This is crucial for achieving a smooth, well-creamed dough that contributes to the cookies’ ultimate texture.
Granulated Sugar: For that signature chewy texture, incorporate 1 1/4 cups of granulated sugar. This white sugar also aids in the creaming process, creating air pockets for a lighter cookie.
Brown Sugar: Add 2/3 cup of packed light brown sugar. The molasses content in brown sugar not only provides a wonderful depth of flavor with caramel notes but also contributes significantly to the cookies’ moisture and chewiness.
Egg: Just one large egg is needed. It acts as a binder, holding all the ingredients together and adding richness to the dough. Ensure it’s also at room temperature for better incorporation.
Vanilla Extract: To enhance and complement all the sweet flavors, use 1/2 teaspoon of good quality vanilla extract. It’s a subtle but essential ingredient that rounds out the cookie’s taste profile.
All-Purpose Flour: The structural base of your cookies will be 2 cups of all-purpose flour. Make sure to measure it correctly, either by weight or by the spoon-and-level method, to avoid a dense or dry cookie.
Baking Powder: A crucial leavening agent, 1/2 teaspoon of baking powder helps the cookies rise and achieve that desirable puffy texture as they bake.
Baking Soda: Another leavener, 1/4 teaspoon of baking soda reacts with the brown sugar and other acidic ingredients to create a tender, soft interior, contributing to a fantastic texture.
Salt: Don’t skip the salt! 1 1/2 teaspoons of fine sea salt are essential. It balances the sweetness, enhances all the other flavors, and brings out the complexities in this tasty treat.
Cornflake Crunch: This is the star ingredient! You will need 3 cups of prepared cornflake crunch. The detailed recipe for this irresistible component is provided separately below. It adds an unparalleled crispy, buttery, and slightly salty element that makes these cookies truly unique.
Mini Chocolate Chips: For bursts of classic chocolatey goodness in every bite, include 1 cup of mini chocolate chips. Their smaller size ensures even distribution and perfect melting without overpowering the other flavors.
Mini Marshmallows: To achieve that delightful gooey center, add 1 cup of mini marshmallows. When baked, they melt into pockets of sweet, sticky goodness, transforming the cookie into an extraordinary indulgence.
Crafting Your Signature Cornflake Crunch
The cornflake crunch is a game-changer in this recipe, providing the essential crispy texture and a unique flavor profile. Here’s what you need and how to make it:
Corn Flakes: You will need 5 cups of plain corn flake cereal. Any brand will work perfectly well for this component.
Milk Powder: To give these clusters an amazing, subtly toasted, and deeply flavorful taste, use 1/2 cup of non-fat milk powder. It’s a secret ingredient that adds a layer of richness.
Granulated Sugar: For just the right touch of sweetness that caramelizes beautifully, add 3 tablespoons of granulated sugar.
Salt: A generous 1 teaspoon of salt is essential here. It perfectly balances the sweetness and enhances the overall flavor of the crunch.
Butter: You need 9 tablespoons of unsalted butter, thoroughly melted. This will act as the binder, coating the cornflakes and helping them clump into delicious clusters.
How to Make Irresistible Marshmallow Cornflake Chocolate Chip Cookies
Step 1: Preparing the Cornflake Crunch
First, begin by preheating your oven to a modest 275° F (135°C). Line a large baking sheet with parchment paper; this will prevent sticking and make cleanup a breeze. Set this aside.
Next, carefully pour the 5 cups of cornflakes into a sturdy ziplocked bag. Using a rolling pin or any cylinder-shaped item, gently crush the cornflakes until they are broken down into smaller pieces, but still retain some texture. Avoid turning them into a fine powder; you want distinct flakes. Transfer the crushed cornflakes to a medium-sized mixing bowl. To this, add the milk powder, granulated sugar, and salt. Stir these dry ingredients together thoroughly, ensuring an even distribution among the cornflakes.
Now, pour the 9 tablespoons of melted butter over the cornflake mixture. Toss everything together vigorously, making sure every cornflake piece is coated with the buttery mixture. As you toss, the melted butter will act as a delicious glue, binding the dry ingredients to the cereal and forming those desirable small, crunchy clusters. Once well combined, spread the clusters evenly in a single layer onto your prepared parchment-lined baking sheet. Bake for approximately 20 minutes. During this time, they should become lightly toasted, emit a wonderfully buttery aroma, and, once slightly cooled, achieve a delightful crunch with a hint of chewiness.
Step 2: Crafting the Cookie Dough
In the bowl of a stand mixer fitted with a paddle attachment, combine the room-temperature butter with both the granulated sugar and brown sugar. Cream these ingredients together on medium-high speed for 2 to 3 minutes. This process is vital; it incorporates air into the butter and sugar, which will result in lighter, more tender cookies. Stop the mixer and scrape down the sides of the bowl to ensure everything is evenly mixed.
Then, add the single egg and the vanilla extract to the creamed butter and sugar. Continue to beat on medium-high speed for a longer duration, about 7 to 8 minutes. This extended beating time is a Milk Bar secret that creates a wonderfully fluffy, emulsified base, contributing to the cookie’s unique texture. Don’t rush this step! If you don’t have a stand mixer, a powerful electric handheld mixer can also achieve similar results.
Reduce your mixer speed to low. Gradually add the flour, baking powder, baking soda, and salt. Mix just until the dry ingredients are barely incorporated and the dough comes together. Be careful not to overmix, as this can lead to tough cookies (no longer than 1 minute on low speed).
Finally, on the lowest speed, gently fold in the prepared cornflake crunch and the mini chocolate chips until they are just incorporated throughout the dough. You want these inclusions to be evenly distributed without breaking them down too much.
After your dough is ready, divide it into 1/4 cup portions, rolling each into a ball. This size creates substantial, satisfying cookies. With each dough ball, gently create a small indentation in the center and stuff 2 mini marshmallows inside, then reshape the dough around them to fully enclose the marshmallows. Place these prepared dough balls on a parchment-lined baking sheet, spaced adequately apart. This step of stuffing the marshmallows individually is critical for preventing them from dissolving entirely during baking and ensuring you get those pockets of gooey sweetness. Refrigerate the dough for at least 1 hour, or place it in the freezer for 30-45 minutes. *This chilling step is absolutely crucial* – it helps the cookies hold their shape, prevents excessive spreading, and allows the flavors to meld beautifully. Do not skip it!
Step 3: Baking to Perfection
Once your dough has thoroughly chilled, preheat your oven to 365° F (185°C). While the oven preheats, take the chilled dough balls and arrange them on fresh parchment paper-lined baking sheets, ensuring a minimum of 4 inches of space between each cookie. This generous spacing is important as these cookies will spread during baking.
Bake for 11-16 minutes. Start checking the cookies around the 11-minute mark. You’re looking for golden-brown edges and centers that are still slightly soft. The cookies will puff up, develop beautiful crackles on their surface, and spread out into their characteristic shape. As they cool, they will continue to set.
Once baked, remove the sheet pans from the oven and allow the cookies to cool completely on the pans. This is another crucial step; freshly baked cookies are delicate and need time to firm up before being moved. Transferring them too soon can cause them to break apart. After they have cooled completely on the baking sheets, you can carefully move them to a wire rack to finish cooling if desired, or simply serve them directly from the pan. Now, the best part: serve and enjoy your incredibly delicious Cornflake Marshmallow Chocolate Chip Cookies!
Expert Tips for Making the Best Cornflake Marshmallow Cookies
Through countless trials and errors, I’ve gathered some invaluable insights to help you achieve cookie perfection every single time. Learn from my baking experiments and ensure your cookies are nothing short of phenomenal:
- Marshmallow Placement Matters: I discovered a significant improvement by adjusting the marshmallow addition method. Instead of mixing them directly into the dough (where they often dissolve too readily), I now individually stuff 2 mini marshmallows into the center of each 1/4-cup cookie dough ball before baking. This technique ensures the marshmallows hold their shape better, resulting in delightful pockets of gooey, melted sweetness within the finished cookie. If you prefer to mix them in, add them after the cornflake crunch and chocolate chips, but be aware they might melt into the dough more.
- Parchment Paper is Your Best Friend: While I’m a big fan of Silpat silicone baking mats for many recipes, I found them to be rather “persnickety” with these cookies. In my early tests, using silicone mats often caused the cookies to spread excessively, leading to thin, crispy results rather than the desired chewy interior. After multiple attempts, I switched to parchment paper – and *ding ding ding!* We had a winner! Parchment paper helps the cookies maintain their thickness and achieve that perfect crispy edge with a chewy center. Use silicone mats at your own risk for this specific recipe.
- Don’t Skip the Chill Time: The refrigeration or freezing step for the dough is absolutely non-negotiable. Chilling the dough helps solidify the butter, which prevents the cookies from spreading too much during baking. It also allows the flavors to deepen and the various textures to set, resulting in a more cohesive and delicious cookie. A minimum of one hour in the fridge or 30-45 minutes in the freezer is essential for the best results.
- Room Temperature Ingredients: Always ensure your butter and egg are at room temperature. This allows them to cream together more effectively, creating an emulsified base that holds more air, leading to a lighter, more evenly textured cookie.
- Measure Flour Correctly: For baking, accuracy is key. Too much flour can make your cookies dry and crumbly, while too little can make them spread too thin. Use a kitchen scale for the most precise measurement, or use the spoon-and-level method if measuring by volume: spoon flour into your measuring cup until it overflows, then level off the top with a straight edge.
- Avoid Overmixing the Dry Ingredients: Once you add the flour, baking powder, baking soda, and salt, mix just until the dough comes together. Overmixing develops the gluten in the flour, which can lead to tough, dense cookies.
- Cool Completely: Resist the urge to move the cookies too soon after baking. They are very delicate when hot. Allowing them to cool completely on the baking sheet allows the marshmallows to set slightly and the cookies to firm up, making them easier to handle and preventing breakage.
Cornflake Marshmallow Cookies
These Cornflake Marshmallow Cookies are an incredible chewy, crunchy and gooey treat! This amazing cornflake marshmallow cookie recipe is packed with fantastic flavors, from the soft marshmallows to the yummy chocolate chips, these cookies are over the top delicious!
Rating: 5 out of 5 stars based on 6 votes
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Course: Cookies, Dessert | Cuisine: American | Keyword: Cornflake Marshmallow Cookies
Prep Time: 15 minutes | Cook Time: 15 minutes | Cornflake Crunch Time: 25 minutes | Total Time: 55 minutes
Servings: 24 cookies | Calories: 277 kcal
Author: Jessica & Nellie
Ingredients
Cookie Dough
- 1 cup butter (2 sticks, at room temperature)
- 1¼ cup granulated sugar
- ⅔ cup brown sugar (packed)
- 1 egg
- ½ tsp vanilla extract
- 2 cup flour
- ½ tsp baking powder
- ¼ tsp baking soda
- 1 ½ tsp salt
- 3 cup cornflake crunch (see recipe below)
- 1 cup mini chocolate chips
- 1 cup mini marshmallows
Cornflake Crunch
- 5 cups corn flake cereal (any brand)
- ½ cup milk powder
- 3 tbsp sugar
- 1 tsp salt
- 9 tbsp butter (melted)
Instructions
- Cornflake Crunch: Begin by preheating the oven to 275°F (135°C). Line a baking sheet with parchment paper, set aside.
- Then, pour the cornflakes in a ziplocked bag and crush them with a rolling pin or cylinder shaped item until broken into smaller pieces. Transfer them to a medium size bowl and then add in the milk powder, sugar, and salt, stir to mix. Next, add the melted butter and toss vigorously to combine. As you toss, the butter will act as glue, binding the dry ingredients to the cereal and creating small clusters. After that, spread the clusters evenly on the parchment lined sheet pan and bake for 20 minutes, at which point they should look toasted, smell buttery, and crunch gently when cooled slightly.
- Cookie Dough: Combine the butter and both types of sugar in the bowl of a stand mixer fitted with a paddle attachment, and cream together on medium-high for 2 to 3 minutes. Scrape down the sides of the bowl, then add the egg and vanilla extract and beat for 7 to 8 minutes until light and fluffy. You can accomplish this using an electric handheld mixer as well. Then, reduce the mixer speed to low and add in the flour, baking powder, baking soda, and salt. Mix just until the dough comes together (no longer than 1 minute).
- Next, on low speed, add in the cornflake crunch and mini chocolate chips until they are just incorporated. After that, divide the cookie dough into 1/4 cup balls. Create a small indentation in the center of each ball, stuff 2 mini marshmallows inside, and then reshape the dough to enclose them completely. Place on a parchment-lined baking sheet. Refrigerate the dough for at least 1 hour, or place in freezer for 30-45 minutes. (This chilling step is critical, they must be chilled!)
- Bake: Start preheating the oven to 365°F (185°C). Re-arrange the chilled dough a minimum of 4 inches apart on the parchment paper-lined baking sheet and bake for 11-16 minutes (check the cookies at 11 minutes). The cookies will puff, crackle, and spread.
- Cool the cookies completely on the sheet pans before attempting to transfer them to a rack to cool further. Serve and enjoy your homemade masterpiece!
Notes
These Cornflake Marshmallow Cookies are a fantastic copycat Milk Bar recipe that is a must-try! This cornflake marshmallow cookie recipe is easy to make and creates the most amazing and delicious cookies EVER!
Nutrition
Calories: 277kcal | Carbohydrates: 35g | Protein: 3g | Fat: 14g | Saturated Fat: 9g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 0.5g | Cholesterol: 40mg | Sodium: 382mg | Potassium: 59mg | Fiber: 1g | Sugar: 19g | Vitamin A: 423IU | Vitamin C: 0.1mg | Calcium: 27mg | Iron: 1mg
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On a slightly different note, here’s a little family secret you might find amusing: my children (all except for my eldest, bless his independent heart) would, without hesitation, trade their allowance, all future cookies, and any other fun imaginable if only we would let them get a dog. Yes, you heard that right. I’m the “mean” mom who steadfastly resists the immense pressure to introduce a four-legged furry friend into our home. What this means in practice is that if anyone, *anyone* at all, happens to walk a dog within a hundred yards of my kids, they will invariably be ambushed by my eager little ones, anxiously awaiting the answer to their adorably earnest request: “CAN WE PET YOUR DOG?” I’ve trained them well to ask politely, and they execute it with impressive precision. Thankfully, most dog owners are happy to comply, which I’m deeply grateful for, because, let’s just say, I’m fully committed to my no-dog stance for now! Ha!
How Long Do These Marshmallow Cookies Stay Fresh?
These delectable marshmallow cornflake cookies maintain their incredible flavor and texture for a good amount of time when stored properly. You can keep them in an airtight container at room temperature for up to 1 week. For optimal freshness and to prevent them from sticking together, especially with those gooey marshmallows, wait until the cookies have cooled completely before storing. If stacking them, place a piece of parchment paper between each layer to ensure they remain distinct and perfectly preserved.
Can I Freeze Chocolate Chip Marshmallow Cookies?
Absolutely! These chocolate chip marshmallow cookies are excellent candidates for freezing, allowing you to enjoy a homemade treat whenever the mood strikes. You have a couple of options: you can freeze the baked cookies or freeze the raw cookie dough. For baked cookies, ensure they are completely cooled before placing them in an airtight freezer-safe container or ziplock bag. They will stay fresh for up to 3 months. When you’re ready to enjoy, simply let them thaw at room temperature for an hour or so, or gently warm them in the oven for a few minutes for a “freshly baked” experience.
Alternatively, you can freeze the cookie dough itself. Form the dough into individual pre-rolled balls and place them on a parchment-lined baking sheet. Freeze until solid, then transfer the frozen dough balls to an airtight freezer bag. You can also form the dough into a log, wrap it tightly in plastic wrap, and freeze. When you’re ready to bake, simply slice the log or place the frozen dough balls directly on a baking sheet, adding an extra minute or two to the baking time. This method is incredibly convenient for having fresh cookies on demand!
If You Loved These Cookies, Explore More Amazing Recipes Here!
If you’ve fallen in love with the unique charm of these Cornflake Marshmallow Cookies, you’re in for a treat! Our collection is brimming with other fantastic cookie recipes that are sure to become new favorites. Dive into these delightful options:
- Our Best Chocolate Chip Cookies: A classic done right, perfectly chewy and rich.
- Raspberry Chocolate Chip Cookies: A burst of fruity flavor paired with decadent chocolate.
- Butter Pecan Chocolate Chip Cookies: A nutty, buttery twist on a beloved cookie.
- Caramel Chocolate Chip Cookies: Irresistible pockets of gooey caramel in every bite.
- Chocolate Chip Peanut Butter Cookies: The ultimate combination of two favorite flavors.
Ultimately, these Cornflake Marshmallow Cookies are more than just a dessert; they are a celebration of contrasting textures and harmonious flavors. This sensational cornflake marshmallow cookie recipe is loaded with deliciousness, from the soft, melting marshmallows and crispy, buttery cornflake crunch to the rich chocolate chips. Every bite is an experience, making these cookies absolutely heavenly and an undeniable hit with anyone who tries them. Don’t wait – bake these extraordinary cookies and taste the magic for yourself!