Fluffernutter Cookies: A Peanut Butter Marshmallow Treat

Dive into the world of Fluffernutter Cookies, where the creamy richness of peanut butter meets the gooey sweetness of marshmallow in every bite. These cookies are not just a treat; they’re an experience, blending beloved flavors into a delightful dessert that promises to captivate your taste buds and leave you craving more.

What Makes Fluffernutter Cookies Irresistible?

At the heart of Fluffernutter Cookies lies a perfect balance of flavors and textures. The creamy peanut butter provides a rich, savory base, while the marshmallow fluff adds a sweet, airy lightness. This combination, paired with a soft, chewy texture, makes these cookies a standout dessert that’s both comforting and indulgent. Discover the numerous health benefits of peanut butter, from heart health to weight management, and why it’s a great addition to your baking recipes.

A hand holding a freshly baked fluffernutter cookie with visible marshmallow filling.

Expert Tips for Fluffernutter Cookie Perfection

  • Fluffy Cookies: To ensure your cookies stay fluffy, avoid overmixing the dough. Mix until just combined for the best texture.
  • Marshmallow Fluff: Be gentle when encasing the fluff in dough to prevent it from oozing out during baking.
  • Even Baking: Space your cookies evenly on the baking sheet to allow for proper heat circulation.

Fluffernutter Cookies FAQs

What flavor is fluffernutter?

Fluffernutter is a delightful fusion of flavors, marrying the savory richness of peanut butter with the sweet, creamy essence of marshmallows. This combination creates a unique and irresistible flavor profile that’s both comforting and indulgent.

What happens to Marshmallow Fluff in the oven?

In the oven, Marshmallow Fluff transforms into a gooey delight, melting into the heart of the cookies to provide a soft, chewy center. This magical change adds a layer of texture and sweetness, making each bite a heavenly experience.

How can I make my cookies fluffy instead of flat?

To achieve fluffy cookies, it’s crucial to avoid overmixing the dough. Overmixing can develop the gluten too much, leading to flat cookies. Also, ensure your baking powder is fresh for optimal rise. Chilling the dough before baking helps too, as it prevents the cookies from spreading too quickly in the oven.

Can I use marshmallows instead of marshmallow crème?

Absolutely! While marshmallow crème is the traditional choice for Fluffernutter Cookies, whole marshmallows are a viable substitute. Keep in mind, though, that marshmallows might melt and spread differently than crème, potentially altering the cookie’s texture. To minimize this, consider cutting the marshmallows into smaller pieces or using mini marshmallows for a more even distribution within the cookies.

Gooey marshmallow stretching between halves of a fluffernutter cookie.

Serving and Storage Suggestions

Serve Fluffernutter Cookies slightly warm for a gooey marshmallow experience, or store them in an airtight container at room temperature for up to a week. For longer storage, freeze the baked cookies and enjoy them anytime.


Fluffernutter Cookies are a delightful blend of flavors and textures that make for a perfect treat any time of the year. With this guide, you’re well on your way to baking a batch of cookies that are sure to impress. So, preheat your oven, gather your ingredients, and get ready to enjoy the irresistible charm of Fluffernutter Cookies. Happy baking!

Once you’ve enjoyed the gooey delight of Fluffernutter Cookies, continue your baking journey with another easy and delicious recipe. Check out our guide on Easy Cool Whip Cookies for a fun and versatile treat that’s perfect for any occasion.

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A stack of fluffernutter cookies with gooey marshmallow peeking out.

Fluffernutter Cookies

  • Author: Taei Nouha
  • Total Time: 27 minutes
  • Yield: 24 cookies 1x
  • Diet: Vegetarian


Savor the irresistible blend of creamy peanut butter and gooey marshmallow in every bite of Fluffernutter Cookies. Perfect for any occasion!


  • ½ cup creamy peanut butter (129 g)
  • ½ cup unsalted butter, softened (1 stick / 113 g)
  • 1 cup packed light brown sugar (200 g)
  • 1 large egg, room temperature
  • 1 teaspoon vanilla extract
  • 1½ cups all-purpose flour (187.5 g)
  • 1 teaspoon cornstarch
  • ½ teaspoon kosher salt
  • 1 cup marshmallow fluff or marshmallow creme


  1. Prep Work: Preheat your oven to 350°F. Line two large baking sheets with parchment paper.
  2. Mix Wet Ingredients: In a large bowl, blend peanut butter, softened butter, and brown sugar until creamy. Mix in the egg and vanilla.
  3. Incorporate Dry Ingredients: Gently mix in flour, cornstarch, and salt until just combined.
  4. Shape and Fill: Flatten tablespoon-sized dough balls and add a dollop of marshmallow fluff in the center. Enclose the fluff with the dough, forming a ball.
  5. Bake: Place on baking sheets and bake for 10-12 minutes. Watch for golden edges.
  6. Cool: Let the cookies rest on the baking sheet for 10-15 minutes before serving.


  • For a less sweet version, reduce the amount of brown sugar slightly.
  • If you prefer a crunchier texture, bake for an additional 2 minutes.
  • Experiment with adding chocolate chips for a chocolatey twist.
  • Prep Time: 15 minutes
  • Cook Time: 12 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American


  • Serving Size: 1 cookie
  • Calories: 180 kcal
  • Sugar: 15g
  • Sodium: 120mg
  • Fat: 8g
  • Saturated Fat: 4g
  • Unsaturated Fat: 3g
  • Trans Fat: 0g
  • Carbohydrates: 24g
  • Fiber: 1g
  • Protein: 3g
  • Cholesterol: 20mg

Keywords: peanut butter marshmallow cookies, fluffernutter cookie recipe, marshmallow peanut butter cookies

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