It’s a cozy evening, and the scent of freshly baked cookies wafts through the air—nothing beats that feeling! Today, I’m excited to share my Fluffernutter Cookies, a delightful twist on a childhood favorite. These chewy peanut butter treats are studded with gooey marshmallow fluff, capturing the essence of those sweet sandwiches we all adored. What makes this recipe truly special is how quick and easy it is to whip up; you’ll have these cookies on the table in no time, perfect for sharing with friends or savoring solo. Plus, they’re budget-friendly, using simple pantry staples that make home baking a breeze. Ready to turn your kitchen into a comforting haven? Let’s dive in and create some nostalgic magic together!

Why are Fluffernutter Cookies so special?
Nostalgic Delight: Each bite transports you back to childhood, merging the sweet memories of peanut butter and marshmallow fluff sandwiches.
Quick & Easy: This recipe is perfect for busy days; it takes just minutes to prepare these chewy cookies.
Budget-Friendly: With basic ingredients from your pantry, you can create a delicious treat without breaking the bank.
Crowd-Pleasing Treat: Whether for a cozy night in or a gathering, these cookies are sure to impress friends and family alike. Pair them with a cold glass of milk, or for a twist, consider serving alongside Oatmeal Cookies Chewy for an extra sweet experience!
Irresistible Texture: The combination of soft centers and crisp edges keeps every bite exciting. It's a unique take on traditional cookies that you won't want to miss!
Fluffernutter Cookies Ingredients
• To create the ultimate Fluffernutter Cookies, you’ll need a mix of familiar favorites.
For the Dough
- All-Purpose Flour – Provides structure; substitute with a gluten-free blend (1:1 ratio) if needed.
- Unsalted Butter – Adds richness and texture; can use salted butter but reduce added salt.
- Creamy Peanut Butter – Main flavor base; almond butter or sunflower seed butter can work for a twist.
- Brown Sugar – Sweetens and adds moisture; coconut sugar can deepen the flavor.
- Granulated Sugar – Balances the sweetness, no specific substitution recommended.
- Egg – Binds ingredients; no vegan substitute suggested in the recipe.
- Baking Soda – Essential leavening agent for that perfect fluffy texture; no substitutes recommended.
- Salt – Enhances flavor; can omit if using salted butter.
For the Gooey Swirl
- Marshmallow Fluff – Adds gooeyness and sweetness; try mini marshmallows or homemade fluff for variation.
Step‑by‑Step Instructions for Fluffernutter Cookies
Step 1: Preheat the Oven
Begin by preheating your oven to 350°F (175°C). This step is crucial for ensuring your Fluffernutter Cookies bake evenly to a perfect golden brown. While the oven preheats, line your baking sheets with parchment paper, which will prevent the cookies from sticking and make cleanup a breeze.
Step 2: Cream the Butter and Peanut Butter
In a large mixing bowl, combine ½ cup of unsalted butter and ¾ cup of creamy peanut butter. Using a hand mixer or stand mixer, cream the two together on medium speed until the mixture is smooth and creamy, about 2-3 minutes. The texture should be light and fluffy, creating the base for your delicious Fluffernutter Cookies.
Step 3: Add Sugars and Egg
Gradually add ½ cup of brown sugar and ¼ cup of granulated sugar to the creamed mixture. Beat on medium speed until well combined, scraping down the sides as needed. Then, crack in one large egg and mix until fully incorporated, ensuring a cohesive dough. This mixture will provide the perfect sweetness and moisture to your cookies.
Step 4: Mix the Dry Ingredients
In a separate bowl, whisk together 1 ½ cups of all-purpose flour, 1 teaspoon of baking soda, and a pinch of salt. This step ensures that your dry ingredients are evenly combined and will mix seamlessly into the wet ingredients. The baking soda is essential for achieving that delightful fluffiness in your Fluffernutter Cookies.
Step 5: Combine Wet and Dry Ingredients
Slowly add the dry mixture to the wet ingredients, mixing on low speed until just combined. Be careful not to overmix; you want a soft dough to form. This dough will create the chewy texture that makes Fluffernutter Cookies so irresistible. Once incorporated, you'll see a smooth consistency with a slight stickiness.
Step 6: Fold in Marshmallow Fluff
Using a spatula, gently fold in 1 cup of marshmallow fluff into the dough. Create swirls without fully blending the fluff in—this will give your cookies that signature gooeyness. The marshmallow will melt into the cookies as they bake, creating delightful pockets of sweetness that enhance each bite.
Step 7: Scoop the Dough
Using a cookie scoop or spoon, drop rounded tablespoons of dough onto your prepared baking sheets, spacing them about 2 inches apart. This spacing allows room for the Fluffernutter Cookies to spread as they bake. If you’d like, sprinkle a pinch of flaky sea salt on top of each dough ball for an extra flavor boost before they bake.
Step 8: Bake the Cookies
Place the cookies in the preheated oven and bake for 12 minutes or until the edges are lightly golden. Keep an eye on them; you want the centers to remain soft and gooey for that perfect chewiness. The aroma of warm peanut butter and marshmallow will fill your kitchen as they bake, a truly inviting scent!
Step 9: Cool Before Serving
Once baked, remove the cookies from the oven and allow them to cool on the baking sheet for about 5 minutes. This step helps them firm up before transferring them to a wire rack. After a few minutes, carefully move the cookies to the rack to cool completely, ensuring each Fluffernutter Cookie retains its delightful texture.

Make Ahead Options
These Fluffernutter Cookies are perfect for meal prep, allowing you to plan ahead for busy days. You can prepare the cookie dough up to 3 days in advance; simply scoop them onto baking sheets, cover tightly with plastic wrap, and refrigerate. For longer storage, freeze the dough balls on a baking tray until solid, then transfer to a freezer-safe bag for up to 3 months. When you’re ready to bake, preheat your oven and bake straight from the fridge or freezer, adding an extra 1-2 minutes to the bake time if frozen. This way, you’ll enjoy soft, gooey Fluffernutter Cookies that are just as delicious as if they were freshly made!
How to Store and Freeze Fluffernutter Cookies
Room Temperature: Keep baked Fluffernutter Cookies in an airtight container at room temperature for up to 5 days to maintain their chewy texture.
Fridge: If you'd like to extend freshness, store the cookies in the fridge for up to a week; just ensure they are well-wrapped to prevent drying out.
Freezer: For longer storage, freeze cookies in a zip-top bag for up to 3 months. Thaw at room temperature before enjoying, or bake straight from frozen by adding an extra 1-2 minutes to bake time.
Dough Storage: Cookie dough can be frozen as well. Scoop it onto a parchment-lined tray, freeze until solid, then transfer to a bag for easy storage.
Expert Tips for Fluffernutter Cookies
- Uniform Size: Use a cookie scoop for consistent-sized cookies that bake evenly, ensuring each Fluffernutter Cookie has the same delightful texture.
- Control the Fluff: Don’t overdo the marshmallow fluff; too much can lead to overly soft cookies. Make sure your dough isn’t too warm before adding.
- Flaky Salt Boost: For an elevated flavor experience, sprinkle a bit of flaky sea salt on top before baking your cookies.
- Dough Freezing: If you're short on time, freeze the scooped dough. This allows for quick baking later; just add an extra 1-2 minutes to the bake time.
- Avoid Overmixing: When combining wet and dry ingredients, mix just until combined. Overmixing can lead to dense cookies that lack the perfect chewy texture.
Fluffernutter Cookies Variations to Explore
Feel free to get creative and tailor these Fluffernutter Cookies to your taste buds—your kitchen will be a canvas of delightful flavors!
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Almond Butter: Swap in almond butter instead of peanut butter for a nutty twist that’s just as delicious.
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Chocolate Chunks: Add a cup of chocolate chips or chunks for a delightful chocolatey contrast to the peanut butter and marshmallow. Each bite will be a blissful mix that screams indulgence.
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Coconut Sugar: Replace brown sugar with coconut sugar for a richer flavor with a subtle caramel hint. It will take your cookies to another level of yum!
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Mini Marshmallows: Use mini marshmallows instead of marshmallow fluff for a fun chewy texture and different gooey experience. Just fold them in gently for bursts of sweetness throughout!
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Spiced Variation: Add a teaspoon of cinnamon or a sprinkle of nutmeg to the dough for a warm, spiced flavor that can elevate your cookie game. It’s like a cozy hug in cookie form!
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Nut-Free Option: Try sunflower seed butter to make these cookies nut-free without sacrificing that creamy, rich flavor you love.
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Peanut Butter Swirls: For an extra peanut butter kick, create swirls of peanut butter throughout the dough before baking. The swirls melt into the cookies, making each one unique and super tempting.
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Serve with Ice Cream: For an extra special treat, serve your Fluffernutter Cookies alongside a scoop of vanilla ice cream, or try it with a twist by pairing it with Pineapple Cookies Tropical for a flavor explosion that’s sure to impress!
What to Serve with Fluffernutter Cookies
Indulging in sweet, chewy Fluffernutter Cookies opens the door to many delicious pairing possibilities that will enhance your dessert experience.
- Cold Glass of Milk: The classic duo of cookies and milk never disappoints, offering a creamy, refreshing contrast to the rich flavors.
- Vanilla Ice Cream: A scoop of velvety vanilla ice cream on the side creates an irresistible combination that amplifies the cookie's nostalgia.
- Chocolate Dipping Sauce: Drizzling warm chocolate sauce over the cookies adds a decadent touch, elevating each bite with velvety richness.
- Fresh Berries: Bright, juicy strawberries or raspberries bring a refreshing balance to the sweetness of the Fluffernutter Cookies. Their tartness cuts through the rich flavors beautifully.
- Coffee or Latte: A warm cup of coffee or a creamy latte pairs perfectly, as the bitterness complements the sweetness of the cookies.
- Nutty Trail Mix: For a fun twist, serve a small bowl of nutty trail mix alongside your cookies for a crunchy contrast that balances the chewy texture.
- Caramel Sauce: Drizzling warm caramel adds a luscious sweetness that heightens the indulgence factor of these nostalgic treats.
- Mini Marshmallows: For an extra sweet touch, serve with a side of mini marshmallows to enjoy an even gooier experience!
- Spiced Hot Chocolate: Cozy up with a cup of spiced hot chocolate, enhancing the warmth and sweetness of the Fluffernutter Cookies beautifully.
- Lemonade: A refreshing glass of lemonade offers a zesty contrast to the rich, nutty flavors, making for a delightful balance.

Fluffernutter Cookies Recipe FAQs
What is the best way to select ripe ingredients for Fluffernutter Cookies?
Absolutely! Using fresh ingredients is key for delicious Fluffernutter Cookies. Look for smooth and creamy peanut butter without added sugars or oils. When selecting your butter, it should be at room temperature for easier creaming. If you choose marshmallow fluff, ensure it's soft and not expired—dark spots can indicate it’s gone bad.
How should I store baked Fluffernutter Cookies?
Baked Fluffernutter Cookies can be stored in an airtight container at room temperature for up to 5 days. To keep them fresh and chewy, avoid stacking them directly on top of each other. Placing parchment paper between layers can help maintain their delightful texture!
Can I freeze Fluffernutter Cookies?
Yes! You can freeze baked Fluffernutter Cookies for up to 3 months. Allow them to cool completely before placing them in a zip-top bag, making sure to remove as much air as possible. For a treat on another day, simply thaw at room temperature, or pop them in the oven for 1-2 minutes to warm them up.
What should I do if my cookie dough is too wet or dry?
Very good question! If your dough feels too wet, add a tablespoon of flour at a time until you achieve a soft, manageable consistency. For dry dough, mix in a teaspoon of milk or cream until it reaches the desired texture. The goal is a slightly sticky dough that holds together without falling apart!
Are Fluffernutter Cookies suitable for people with dietary restrictions?
Definitely! For those with nut allergies, you can swap out peanut butter for sunflower seed butter, maintaining a similar texture and flavor. If gluten-free is your goal, simply use a 1:1 gluten-free flour blend. Always double-check your marshmallow fluff for any allergens if sharing with friends or family who might have sensitivities.
Can I add additional ingredients to customize my Fluffernutter Cookies?
The more the merrier! Feel free to mix in chocolate chips, oats, or even chopped nuts for an exciting flavor twist. You can also substitute part of the granulated sugar for brown sugar; this enhances the depth of flavor and adds even more moisture. Enjoy experimenting!

Chewy Fluffernutter Cookies That'll Take You Back to Childhood
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and line baking sheets with parchment paper.
- Cream ½ cup unsalted butter and ¾ cup creamy peanut butter until smooth, about 2-3 minutes.
- Add ½ cup brown sugar and ¼ cup granulated sugar; mix well. Then add 1 large egg and integrate fully.
- Whisk together 1 ½ cups all-purpose flour, 1 teaspoon baking soda, and a pinch of salt in a separate bowl.
- Slowly combine the dry ingredients with the wet mixture until just combined.
- Gently fold in 1 cup marshmallow fluff, creating swirls without fully blending.
- Scoop rounded tablespoons of dough onto prepared baking sheets, spacing them 2 inches apart.
- Bake for 12 minutes until edges are lightly golden, keeping centers soft.
- Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack.





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