If you’re ready to embrace a playful twist on classic peanut butter treats, this Fluffernutter Cookies Recipe is about to become your new favorite. Imagine the perfect blend of creamy peanut butter and gooey marshmallow nestled inside a soft, buttery cookie—each bite is a nostalgic hug wrapped in a warm, chewy delight. These cookies are a wonderful homage to the beloved fluffernutter sandwich, but reinvented in a way that’s irresistibly fun and finger-licking good.

Ingredients You’ll Need

The image shows several white bowls and plates with different baking ingredients arranged on a white marbled surface. In the top right, there is a white plate with several chunks of pale yellow butter. To the left, a small white bowl holds a light brown powder labeled baking soda. Below it, a white bowl is filled with white flour. A small cup with dark vanilla liquid sits next to a white egg in the center. To the right of the egg is a small bowl of smooth, light brown peanut butter, and below that is another white bowl filled with peanut butter chips that are a golden tan color. At the bottom left, a white bowl contains many white marshmallows, and next to the marshmallows is another white bowl holding two types of sugar: white granulated sugar and light brown sugar. Photo taken with an iphone --ar 4:5 --v 7

Don’t let the short list fool you—each ingredient in this recipe plays a vital role in creating the ideal balance of flavor, texture, and color. The peanut butter provides that rich, nutty backbone, while butter and sugars offer moisture and sweetness, culminating in cookies that are soft yet sturdy enough to hold that melty marshmallow surprise.

Creamy peanut butter: Use classic brands like Jif, Skippy, or Peter Pan for the perfect smooth texture; avoid natural peanut butter to ensure the right consistency.
All-purpose flour: Adds structure for a tender crumb without toughness.
Baking soda: Helps the cookies rise just enough to stay soft but fluffy.
Kosher salt: Balances sweetness and enhances flavor depth.
Unsalted butter: Room temperature for smooth creaming and rich flavor.
Light brown sugar: Adds molasses notes and keeps cookies soft and chewy.
Granulated sugar: Provides sweetness and helps with browning.
Large egg: At room temperature for even mixing and moisture.
Vanilla paste or extract: Offers warmth and aromatic complexity.
Marshmallows: Standard sized, the gooey centerpiece of the cookie magic.
Peanut butter chips (optional): For an extra pop of peanut flavor and a bit of texture contrast.

How to Make Fluffernutter Cookies Recipe

Step 1: Prepare the Peanut Butter Dollops

Start by laying parchment on a standard plate, then scoop out generous dollops of creamy peanut butter—about a heaping teaspoon each—until you have 12. Pop these in the freezer because the cold peanut butter cores are crucial for keeping that gooey surprise intact during baking.

Step 2: Mix Dry Ingredients

Whisk together the flour, baking soda, and salt in a bowl to evenly distribute the leavening and seasoning. Setting this aside now keeps things moving smoothly when the wet components are ready.

Step 3: Cream Butter and Peanut Butter

Using a stand mixer with the paddle attachment, cream together the softened butter and most of the peanut butter until fluffy and well combined. This step is where the cookie starts building its creamy, rich texture.

Step 4: Add Sugars, Egg, and Vanilla

Beat in the brown sugar and granulated sugar until light, then mix in the egg and vanilla paste or extract. The flavors start to come alive here, with the vanilla adding a comforting dimension to the peanut base.

Step 5: Incorporate Dry Ingredients

Slowly blend the dry mixture into the wet until just incorporated, making sure not to overmix to keep your cookies tender and soft.

Step 6: Shape the Cookies Around the Peanut Butter and Marshmallow

Preheat the oven to 350℉ (180℃) and line cookie sheets with parchment. Scoop three tablespoons of dough, flatten it in your palms, then place a frozen peanut butter dollop in the center. Nestle one marshmallow on top, gently press, and pull the dough upward around the filling until it’s sealed—don’t worry if it cracks; just press gently to fix.

Step 7: Bake and Reshape

Place each ball seam side down on the cookie sheet, optionally topping with peanut butter chips. Bake one tray at a time for about 9–11 minutes, then remove, smack the pan on the counter to settle the cookies, and use a cooking spray-lubricated spatula to press and reshape the edges perfectly.

Step 8: Cool Completely

Allow the cookies to cool fully on the pan before trying to move them. This step is key because the marshmallow tends to stick a bit, and they’re easier to transfer once set.

How to Serve Fluffernutter Cookies Recipe

The image shows six round cookie dough balls placed on a sheet of light brown parchment paper covering a baking tray. Each dough ball is tan in color and has light tan circular chips embedded on the top and sides. The dough balls are spaced apart evenly in two rows, with three dough balls in each row. The overall texture of the dough looks smooth and soft. The baking tray has a rustic, worn metal edge visible around the parchment paper. The photo is taken from above on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

Garnishes

For a fun touch, sprinkle some additional peanut butter chips or a light dusting of powdered sugar on top. A drizzle of melted chocolate or a few toasted chopped peanuts add texture and visual appeal that elevates these cookies instantly.

Side Dishes

Pair your Fluffernutter Cookies with a cold glass of milk or a warm cup of coffee for a comforting combo. For an adult twist, a creamy peanut butter milkshake or smooth cold brew coffee beautifully complements the sweetness and richness.

Creative Ways to Present

Try stacking a few cookies with a scoop of vanilla ice cream between them for a playful sandwich dessert. Alternatively, arrange them on a rustic wooden board with fresh fruit and nuts for a delightful snack platter that invites sharing and smiles.

Make Ahead and Storage

Storing Leftovers

Keep any leftover Fluffernutter Cookies in an airtight container at room temperature for up to five days. The cookies maintain their soft texture beautifully, and the marshmallow center remains perfectly gooey.

Freezing

To freeze, wrap each cookie individually in plastic wrap and place them in a freezer-safe container for up to three months. This lets you enjoy the magic of this Fluffernutter Cookies Recipe any time you want a quick treat.

Reheating

When you’re ready to eat frozen cookies, warm them gently in a 350℉ oven for about 5 minutes or microwave for 10-15 seconds. The marshmallow center revives into its soft, luscious self, making every bite feel freshly baked.

FAQs

Can I use natural peanut butter for this recipe?

This recipe calls for creamy peanut butters like Jif or Skippy because natural peanut butter’s higher oil content can change the cookie’s texture and make it too soft or greasy.

Do the marshmallows stay gooey after baking?

Yes! The secret to that perfect gooey center is freezing the peanut butter dollops before wrapping with dough and marshmallows so they don’t melt completely during baking.

Can I substitute mini marshmallows for the standard size?

Standard-sized marshmallows work best to create a nice, satisfying gooey pocket, but mini marshmallows can be used in a pinch—just expect a smaller marshmallow center.

Why do we smack the cookie sheet after baking?

Smacking helps the cookies settle and stops them from rising further, ensuring they remain soft and flat with that perfect chewiness you want.

Can I add chocolate chips or other mix-ins to the dough?

Absolutely! Peanut butter chips are a popular choice, but feel free to experiment by mixing in chocolate chips or chopped nuts for extra texture and flavor nuances.

Final Thoughts

There’s something undeniably fun and comforting about this Fluffernutter Cookies Recipe. It brings childhood nostalgia to life with a grown-up cookie twist. Once you try them, these soft, peanut buttery, marshmallow-stuffed cookies will quickly find a permanent place in your dessert rotation. Don’t wait—grab your ingredients, and let the baking magic begin!