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Fluffernutter Cookies Recipe

Published: Oct 11, 2025 by Ivy · This post may contain affiliate links · Leave a Comment

Jump to Recipe· 3.9 from 240 reviews

If you have a soft spot for the classic peanut butter and marshmallow sandwich, you are absolutely going to fall in love with this Fluffernutter Cookies Recipe. These cookies are a perfect blend of creamy peanut butter, sweet marshmallow creme, and the light, tender crumb of cake mix, baked into chewy, gooey bites of pure nostalgic happiness. Every bite delivers that delightful combo of nutty richness and pillowy sweetness that feels like a warm hug. Whether you’re baking for a crowd or just treating yourself, these cookies bring a joyous twist to a beloved childhood flavor.

Ingredients You'll Need

Four white bowls are placed on a white marbled surface in a 2x2 grid layout. The top left bowl contains two raw eggs with bright yellow yolks and a large scoop of creamy light brown peanut butter. The top right bowl shows the peanut butter and eggs mixed into a smooth, thick, shiny light brown batter with a swirled texture. The bottom left bowl has the same batter with a heap of light beige powder, likely flour, on top. The bottom right bowl displays this mixture combined into a crumbly, thick dough with a golden brown color and rough texture spread evenly inside the bowl. photo taken with an iphone --ar 4:5 --v 7

This recipe is wonderful because it uses simple pantry staples that come together so effortlessly, yet each ingredient plays a crucial role in the cookie's perfect texture and taste. From the rich creaminess of the peanut butter to the fluffy marshmallow center, every component is essential to achieve that iconic Fluffernutter flavor.

  • 1 cup creamy no-stir peanut butter: Use your favorite brand for the best richness and smooth bite.
  • ½ cup canola or vegetable oil: Adds moisture and keeps the cookies soft and tender.
  • 2 large eggs: Helps bind all the ingredients together and provides structure.
  • 1 (15.5-ounce) box yellow cake mix: This is the secret to a soft, cakey texture with a subtle sweet base.
  • 1 (7-ounce) jar marshmallow creme: The luscious, gooey center that makes these cookies uniquely irresistible.

How to Make Fluffernutter Cookies Recipe

Step 1: Prep Your Oven and Baking Sheet

Start by preheating your oven to 350 degrees Fahrenheit. Line a baking sheet with parchment paper to prevent sticking and make cleanup easier. This simple prep step ensures your cookies bake evenly and slide off effortlessly once done.

Step 2: Mix the Wet Ingredients

In a large bowl, combine the creamy peanut butter, eggs, and oil until the mixture is smooth and well incorporated. This forms the rich, moist base of your cookie dough that promises a tender bite every time.

Step 3: Incorporate the Cake Mix

Next, add the yellow cake mix to your wet ingredients. Stir everything until a thick dough forms. This dough will be slightly pliable and perfect for scooping.

Step 4: Shape the Cookie Dough

Scoop 2-tablespoon portions of dough onto a clean surface, roll each portion into a ball, then flatten it into a disk. This step is key to creating the cookie shape that will hold the marshmallow filling inside.

Step 5: Add the Marshmallow Filling

Place about 2 teaspoons of marshmallow creme in the center of each dough disk. Carefully bring the edges up around the marshmallow, sealing it completely, and gently reshape it back into a ball. This creates that irresistible gooey center we’re all craving.

Step 6: Arrange on Baking Sheet and Bake

Place your marshmallow-stuffed cookie balls onto the parchment-lined baking sheet, leaving at least 2 inches between each so they have room to expand. Bake for 10 to 12 minutes until the edges are set and you can see the marshmallow peeking and cracking through the top.

Step 7: Cool and Enjoy

Allow the cookies to cool fully on the baking sheet before serving. This resting time lets the cookies firm up slightly and the gooey center settle, so every bite stays wonderfully soft and melty.

How to Serve Fluffernutter Cookies Recipe

The image shows a silver baking tray lined with white parchment paper, holding twelve round cookies arranged in a 3x4 grid. Each cookie has two visible layers – a light golden brown top layer with a cracked, soft texture and a white bottom layer that looks slightly fluffy and smooth. The cookies sit on the tray with a white marbled surface underneath. photo taken with an iphone --ar 4:5 --v 7

Garnishes

While these cookies are perfect on their own, a light dusting of powdered sugar or a drizzle of melted chocolate can add an extra touch of charm. A sprinkle of crushed peanuts on top before baking gives a lovely crunch and a nutty finish.

Side Dishes

Pair these cookies with a cold glass of milk or a warm cup of coffee for a cozy snack. For an afternoon treat, serve alongside fresh fruit or a scoop of vanilla ice cream to complement their sweet, nutty flavor.

Creative Ways to Present

Make these Fluffernutter Cookies Recipe stars at your next party by serving them on a rustic wooden platter with little bowls of extra marshmallow creme and peanut butter for dipping. Or wrap a few in parchment paper tied with twine for adorable grab-and-go gifts that friends and family will love.

Make Ahead and Storage

Storing Leftovers

Keep leftover Fluffernutter cookies in an airtight container at room temperature for up to 3 days. This helps retain their chewiness and prevents the marshmallow centers from drying out.

Freezing

You can freeze these cookies for up to 2 months. Place them in a single layer on a baking sheet first to freeze solid, then transfer to a freezer-safe bag or container. Thaw at room temperature before enjoying to bring back that soft, gooey texture.

Reheating

To revive the warm, melty center, pop a cookie in the microwave for 10 to 15 seconds. This brief heat brings the marshmallow creme back to its perfect gooey state and makes the peanut butter even more aromatic.

FAQs

Can I use natural peanut butter instead of creamy no-stir peanut butter?

You can, but keep in mind natural peanut butter usually has a thinner texture and less added sugar, which might change the cookie's consistency and sweetness slightly. Stir well before measuring if it separates.

What if I don’t have yellow cake mix?

Yellow cake mix is crucial for the soft, cakey texture of these cookies, but in a pinch, you could try a vanilla or white cake mix. Avoid mixes that include pudding or extra fillings, as they may affect the dough’s consistency.

Can I make these cookies vegan?

To make a vegan version, you’d need to substitute the eggs with a flax egg or other egg replacer, and use vegan marshmallow creme and cake mix. Keep in mind this may slightly alter the texture but can still be delicious!

Why do the marshmallow centers crack during baking?

The marshmallow creme expands as it heats, causing little cracks to appear on the cookie surface. It's a good sign—it means the gooey center is perfectly melted and ready to enjoy.

How do I prevent the cookies from spreading too much?

Chilling the dough briefly before baking can help control spreading. Also, be sure to space cookies well apart on the baking sheet and avoid using melted or overly warm peanut butter which can make dough too soft.

Final Thoughts

There is something truly magical about this Fluffernutter Cookies Recipe that brings childhood memories to life while delighting grown-up taste buds. The combination of peanut butter and marshmallow creme baked into soft, tender cookies is nothing short of pure joy. I encourage you to give this recipe a try and share the happiness with friends and family. Trust me, one batch won’t be enough!

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Fluffernutter Cookies Recipe

Fluffernutter Cookies Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 3.9 from 240 reviews
  • Author: Ivy
  • Prep Time: 10 minutes
  • Cook Time: 12 minutes
  • Total Time: 22 minutes
  • Yield: 28 cookies
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
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Description

Delightfully soft and chewy Fluffernutter Cookies combine the classic flavors of peanut butter and marshmallow creme for a nostalgic treat. These easy-to-make cookies use simple ingredients like creamy peanut butter, yellow cake mix, and marshmallow fluff to create a gooey center that melts in your mouth. Perfect for peanut butter lovers seeking a fun twist on traditional cookies, they bake quickly and make a great snack or dessert.


Ingredients

Cookie Dough

  • 1 cup creamy no-stir peanut butter (like Jif or Skippy)
  • ½ cup canola or vegetable oil
  • 2 large eggs
  • 1 (15.5-ounce) box yellow cake mix

Filling

  • 1 (7-ounce) jar marshmallow creme


Instructions

  1. Preheat Oven and Prepare Baking Sheet: Preheat your oven to 350 degrees Fahrenheit. Line a baking sheet with parchment paper to prevent sticking and ensure even baking.
  2. Mix Wet Ingredients: In a large mixing bowl, stir together the creamy peanut butter, eggs, and canola or vegetable oil until the mixture is smooth and well combined.
  3. Add Cake Mix: Gradually add the yellow cake mix to the wet ingredients, mixing until a thick, cohesive dough forms.
  4. Form Dough Portions: Scoop out 2-tablespoon portions of the dough, roll each portion into balls, then flatten them into small disks to prepare for filling.
  5. Add Marshmallow Filling: Place approximately 2 teaspoons of marshmallow creme in the center of each dough disk. Carefully bring the dough edges up around the marshmallow, sealing it completely, and gently reshape into a ball to encase the filling.
  6. Arrange Cookies on Baking Sheet: Place the filled dough balls onto the prepared baking sheet, spacing them at least 2 inches apart to allow spreading during baking.
  7. Bake Cookies: Bake the cookies for 10 to 12 minutes, or until the edges are set and you notice the marshmallow filling has cracked through the cookie surface, indicating gooey centers.
  8. Cool and Serve: Allow the cookies to cool completely on the baking sheet before transferring to a cooling rack or serving. This helps them set and maintain their shape.

Notes

  • Use creamy peanut butter for best texture; no-stir versions help maintain consistency.
  • Sealing the marshmallow creme well ensures a melty center that doesn’t leak out during baking.
  • If you prefer, you can substitute canola oil with vegetable oil or light olive oil.
  • These cookies are best enjoyed the same day but can be stored in an airtight container at room temperature for up to 3 days.
  • For a gluten-free option, substitute the yellow cake mix with a gluten-free cake mix.

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Hey, I’m Ivy!

I’m a 28-year-old mom to my little prince, Pitter, who loves cooking and exploring flavors from around the world. What started in my home kitchen is now a space where I share simple, global-inspired recipes made with love.

 

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