Welcome to the delightful world of Fluffernutter Cookies, where a classic American combination of peanut butter and marshmallow fluff transcends the traditional sandwich and transforms into an utterly irresistible cookie! This recipe takes a beloved peanut butter cookie base and elevates it to extraordinary heights with a generous dollop of fluffy marshmallow creme. The resulting cookies are a symphony of sweet and savory, soft and chewy textures that will captivate your taste buds and leave you craving more. Prepare to embark on a culinary journey that promises pure, nostalgic bliss with every single bite.

For those who adore the rich, nutty flavor of peanut butter and the ethereal sweetness of marshmallow, these Fluffernutter Cookies are an absolute revelation. They offer a unique twist on a familiar favorite, blending the best of both worlds into a single, sensational dessert. Whether you’re a seasoned baker or just starting out, this recipe is designed to be straightforward and rewarding, ensuring a batch of perfectly soft, deeply flavorful cookies every time. The magic lies in the simplicity of combining these two iconic ingredients, creating a harmony that is truly amazing in a cookie form.
What makes this particular recipe even more special is that it’s naturally gluten-free! That’s right, no flour is necessary to achieve these wonderfully soft and perfectly cookie-like treats. This makes them an excellent option for those with gluten sensitivities or anyone looking to try a different kind of cookie texture. The absence of flour doesn’t compromise their integrity; instead, it allows the vibrant flavors of peanut butter and marshmallow to truly shine, resulting in a cookie that is remarkably tender and satisfying.

What Does “Fluffernutter” Truly Mean? Unpacking the Iconic Name
The whimsical term “Fluffernutter” most commonly refers to a classic American sandwich, a delightful concoction of peanut butter and marshmallow cream (or “fluff”) spread between two slices of bread. Originating in New England in the early 20th century, this humble sandwich quickly became a beloved comfort food, particularly among children. Its name perfectly encapsulates its two main components: “fluff” for the marshmallow creme and “nutter” for the peanut butter. While the sandwich remains a nostalgic treat for many, the irresistible combination of these two ingredients has found its way into countless other culinary creations, from milkshakes to pastries, and most deliciously, into these incredible cookies.
One might argue that the marriage of peanut butter and marshmallow cream is even more ideally suited for a cookie than a sandwich! The soft, chewy texture of a freshly baked peanut butter cookie provides the perfect foundation for the sweet, airy marshmallow topping. It transforms a simple dessert into something truly extraordinary, offering a textural contrast and flavor profile that is hard to beat. If you’ve never experienced the joy of a Fluffernutter, these cookies are the perfect introduction to this iconic flavor pairing.
Essential Ingredients for Your Fluffernutter Cookie Masterpiece
Crafting the perfect Fluffernutter Cookie requires a handful of simple, readily available ingredients. Each component plays a crucial role in achieving the desired texture and unforgettable flavor. Here’s a closer look at what you’ll need and some tips for selecting the best ones:
- Peanut Butter: This is the star of our cookie! For optimal results and a consistently soft texture, I highly recommend using a regular creamy peanut butter, such as Jif or Skippy. These brands offer a balanced flavor and smooth consistency that works perfectly in this recipe. While you can certainly experiment with crunchy peanut butter for added texture, be aware that it might alter the overall consistency slightly. I generally advise against using “natural” or “oil-separated” peanut butter in this specific recipe. Their thinner, often greasier consistency can lead to a different dough texture and potentially a drier, more crumbly cookie. If you do use natural peanut butter, ensure it’s well-stirred to incorporate the oil, but be prepared for a slightly different outcome.
- Brown Sugar: The use of brown sugar contributes significantly to the cookies’ chewy texture and moistness, adding a deeper, molasses-rich sweetness. For the best results, always ensure your brown sugar is soft and fresh. If it has hardened, you can easily soften it by placing it in an airtight container with a slice of bread or a damp paper towel overnight.
- Granulated Sugar: Alongside brown sugar, granulated sugar provides the essential sweetness and helps achieve that classic cookie crispness around the edges, while keeping the interior soft. The combination of both sugars creates a beautifully balanced flavor and texture profile.
- Egg: A single egg acts as a binding agent, holding all the ingredients together and contributing to the cookie’s structure and richness. It also adds moisture, ensuring your cookies stay tender.
- Vanilla Extract: A touch of pure vanilla extract enhances all the other flavors, adding warmth and depth to both the peanut butter and marshmallow notes. Don’t skip this essential flavor booster!
- Salt: Just a quarter teaspoon of salt is vital. It doesn’t make the cookies salty, but rather balances the sweetness and brings out the rich, savory qualities of the peanut butter, making the overall flavor more complex and satisfying.
- Baking Soda: As a leavening agent, baking soda helps the cookies rise slightly and spread, giving them that characteristic soft, chewy interior. Always check the expiration date of your baking soda; old or expired baking soda won’t react properly, leading to flat or dense cookies.
- Marshmallow Creme (or Marshmallow Fluff): This is the crowning glory of our Fluffernutter Cookies! Whether you call it marshmallow creme or fluff, this sweet, sticky, and airy topping is what truly transforms these into their namesake. A standard 7.5 oz jar is usually enough for a batch, providing that iconic fluffy finish.

Step-by-Step Guide: How to Bake Irresistible Fluffernutter Cookies
Creating these delightful Fluffernutter Cookies is a straightforward process, promising a rewarding baking experience and a batch of utterly delicious treats. Follow these detailed steps to ensure perfection:
- Prepare Your Baking Environment: Begin by preheating your oven to 350°F (175°C). This ensures the oven is at the correct temperature for even baking from the moment your cookies go in. Next, line a baking sheet with either a silicone baking mat or parchment paper. This crucial step prevents the cookies from sticking and makes for easy removal and cleanup.
- Cream the Wet Ingredients and Sugars: In a large mixing bowl, combine the peanut butter, brown sugar, and granulated sugar. Using an electric mixer, beat these ingredients together on medium speed for 2-3 minutes. This creaming process is essential; it incorporates air into the mixture, resulting in lighter, softer cookies. Don’t rush this step, as it significantly impacts the final texture.
- Incorporate Egg and Vanilla: After creaming the peanut butter and sugars, add the egg and vanilla extract to the bowl. Continue to beat the mixture for another few minutes until everything is well combined and the mixture appears smooth and creamy.
- Add Dry Ingredients: Finally, add the salt and baking soda to the wet mixture. Stir gently, either by hand or with the mixer on low speed, just until these dry ingredients are fully incorporated. Overmixing at this stage can develop gluten (even though there’s no flour, excess mixing can toughen the dough), so mix only until no streaks of dry ingredients remain.
- Form and Indent the Cookies: Using a cookie scoop (a 1.5-tablespoon size is ideal for uniform cookies), scoop out portions of the dough and roll them gently between your palms to form smooth balls. Place these dough balls onto your prepared baking sheet, spacing them a couple of inches apart. Now, for the signature Fluffernutter touch: use your thumb or the back of a tablespoon to press a noticeable indentation into the center of each dough ball. This creates a perfect pocket for the marshmallow fluff later.
- Bake to Golden Perfection: Place the baking sheet in the preheated oven and bake for 10-12 minutes. The exact baking time can vary slightly depending on your oven and desired crispness. For a softer, chewier cookie, lean towards the shorter end of the baking time. If you prefer a slightly crispier edge, extend the baking by a minute or two, but be careful not to overbake, as they can quickly become dry. The cookies should be lightly golden at the edges but still appear soft in the center.
- Cool and Indent (Again): As soon as you remove the hot cookies from the oven, they will be very delicate. Use the back of a tablespoon again to gently press down the indentation in the middle of each cookie, as it may have risen slightly during baking. This reinforces the pocket for the marshmallow fluff. Let the cookies cool on the baking sheet for 2-3 minutes. This brief cooling period allows them to firm up slightly before you move them.
- Complete Cooling and Fluff Application: Carefully transfer the slightly cooled cookies to a wire rack to cool completely. This step is crucial; attempting to add marshmallow creme to warm cookies will cause it to melt and become messy. Once the cookies are entirely cool, it’s time for the grand finale! Using two spoons, scoop a generous spoonful of marshmallow cream with one spoon, then use the second spoon to gently push and spread the fluff onto the indentation of each cookie. This two-spoon method makes the sticky marshmallow much easier to handle.
Your beautiful and delicious Fluffernutter Cookies are now ready to be enjoyed! Prepare for a truly delightful experience.


Fluffernutter Cookies
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Ingredients
- 1 cup creamy peanut butter
- 1/2 cup light brown sugar, lightly packed
- 1/2 cup granulated sugar
- 1 large egg
- 1 tsp pure vanilla extract
- 1/4 tsp fine sea salt
- 1 tsp baking soda
- 1 (7.5 oz)jar marshmallow cream (or fluff)
Instructions
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Preheat oven to 350°F (175°C). Line a large baking sheet with a silicone baking mat or parchment paper.
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In a large bowl, combine peanut butter, brown sugar, and granulated sugar. Beat with an electric mixer for 2-3 minutes until light and creamy.
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Add the egg and vanilla extract to the mixture. Beat for another 1-2 minutes until thoroughly combined.
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Stir in the salt and baking soda, mixing just until combined. Be careful not to overmix.
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Scoop tablespoonfuls of dough and roll them into balls. Place on the prepared baking sheet. Press an indentation into the center of each ball using your thumb or the back of a tablespoon.
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Bake for 10-12 minutes. For chewier cookies, bake closer to 10 minutes; for slightly crispier, bake closer to 12 minutes.
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Immediately after removing from the oven, gently press the indentations again with a spoon to ensure a good pocket for the fluff. Let cookies cool on the baking sheet for 2-3 minutes before transferring to a wire rack to cool completely.
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Once cookies are completely cool, use two spoons to add a generous dollop of marshmallow cream to the center of each cookie.

Pro Tips for Fluffernutter Cookie Perfection
Achieving bakery-quality Fluffernutter cookies is easier than you think with these expert tips:
- Creaming is Key: Don’t underestimate the power of properly creaming your peanut butter and sugars. Beating them together for the recommended 2-3 minutes isn’t just mixing; it’s incorporating air, which results in a lighter, more tender crumb. This step is crucial for the overall consistency and melt-in-your-mouth texture of your cookies.
- Preheat Your Oven Faithfully: Always ensure your oven is fully preheated to the specified temperature before placing your cookie dough inside. A properly preheated oven ensures even baking from the start, preventing cookies from spreading too much or baking unevenly. It’s a simple step that guarantees consistent results every time.
- Invest in a Cookie Scoop: For professional-looking, uniformly sized cookies, a cookie scoop is your best friend. It not only saves time but also ensures that all your cookies bake evenly since they are all the same size and shape. Consistency in size means consistency in baking time.
- Utilize Parchment Paper or Silicone Mats: Lining your baking sheets with parchment paper or a silicone baking mat is a game-changer. These materials provide a non-stick surface, making it incredibly easy to remove your delicate cookies without breakage. They also promote even heat distribution, contributing to perfectly baked cookies that slide right off the pan in their ideal shape.
- Don’t Rush the Cooling Process: Patience is a virtue, especially when it comes to cooling cookies. Allowing them to cool completely on a wire rack before adding the marshmallow fluff is crucial. Marshmallow cream melts easily on warm surfaces, turning into a sticky, unmanageable mess. Cool cookies ensure the fluff sets beautifully.
- Two Spoons for the Fluff: Marshmallow cream is notoriously sticky. The easiest way to handle it and achieve a clean dollop on each cookie is to use two spoons. Scoop the fluff with one spoon, then use the second spoon to gently push it off and onto the cookie’s indentation. This simple trick will save you from sticky fingers and frustrated moments.
- Check Baking Soda Freshness: As a leavening agent, baking soda is critical for the cookies’ texture. If it’s old or expired, your cookies may turn out flat and dense. To test its freshness, mix a teaspoon of baking soda with a splash of vinegar. If it fizzes vigorously, it’s still good.
Storage and Freezing Your Fluffernutter Delights
These Fluffernutter cookies are undeniably best enjoyed fresh, but if you happen to have any leftovers (which is unlikely!), here’s how to store them to maintain their deliciousness:
- Room Temperature Storage: Once the marshmallow fluff has set, store the cookies in an airtight container at room temperature for up to 3-4 days. Placing a piece of parchment paper between layers can help prevent the marshmallow from sticking.
- Refrigeration: While not strictly necessary, if your home is particularly warm, you can store them in the refrigerator. This might slightly firm up the cookie, but they will still be delicious. Bring them to room temperature for optimal enjoyment.
- Freezing Baked Cookies: For longer storage, you can freeze the baked cookies *without* the marshmallow fluff. Once baked and completely cooled, place them in a single layer on a baking sheet and flash freeze for about an hour until solid. Then, transfer them to an airtight freezer-safe bag or container, separating layers with parchment paper. They can be frozen for up to 3 months. When ready to serve, thaw at room temperature and then add the marshmallow fluff.
- Freezing Dough: You can also freeze the raw cookie dough. Form the dough balls with the indentations as instructed, then flash freeze them. Once solid, transfer to a freezer-safe bag. When ready to bake, place frozen dough balls on a prepared baking sheet and bake for an extra 2-4 minutes, or until done.
More Peanut Butter Cookie Recipes to Explore
If you’re as passionate about peanut butter cookies as we are, then you’re in for a treat! The versatility of peanut butter makes it a fantastic base for countless cookie variations. Here are some of our other cherished peanut butter cookie recipes that you might love:
- Marshmallow Peanut Butter No Bake Cookies – Perfect for when you need a quick, oven-free fix.
- Easy Peanut Butter Cookies – A classic, straightforward recipe that’s always a hit.
- Best Peanut Butter Chocolate Chip Cookies – The timeless pairing of chocolate and peanut butter.
- Fudge Peanut Butter Cookie Cups – A delightful treat with a rich, gooey center.
- Peanut Butter No Bake Cookies – Another fantastic no-bake option for busy days.
- Butterfinger Peanut Butter Cookies – Crushed Butterfinger bars add a crunchy, candy twist.
- Snickers Peanut Butter Cookies – Indulgent cookies inspired by the beloved candy bar.
- Peanut Butter Oatmeal Chocolate Chip Cookies – Hearty and satisfying, with a great blend of textures.
- Reeses Peanut Butter Cookies – For the ultimate peanut butter cup lovers.

These Fluffernutter Cookies are more than just a dessert; they are a celebration of two classic flavors coming together in perfect harmony. The tender, peanut-rich base beautifully complements the sweet, cloud-like marshmallow topping, creating a cookie that is both familiar and exciting. They’re perfect for parties, cozy evenings, or simply to brighten your day with a taste of pure joy. We hope you enjoy baking and sharing these incredible cookies as much as we do!



Baking, especially with family, brings so much joy and warmth into our home. Even with five kids, including a wonderfully energetic 14-month-old, the kitchen is often the heart of our happy chaos. This little one, always busy exploring, reminds me that every day is an adventure, much like discovering new favorite recipes. She’s into absolutely everything—climbing, opening cabinets, making delightful messes, and even eyeing the toilet for a splash! It’s a constant whirlwind, but her infectious curiosity and adorable antics make every minute precious. These Fluffernutter Cookies, with their simple ingredients and comforting flavors, are perfect for those moments when we need a sweet reward after a day full of toddler-fueled excitement. Baking with her, even if it means a bit more cleanup, creates cherished memories and truly makes these treats even sweeter.