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DESSERTS / Fluffernutter Cookies

Fluffernutter Cookies

July 11, 2026 by Aimee

The scent of freshly baked cookies wafts through the air, evoking warm memories of childhood snacks. Fluffernutter Cookies are a delightful twist on the classic combination of peanut butter, sugar, and marshmallow fluff. With a prep time of just 15 minutes and an easy baking process, this recipe guarantees cookie perfection in every bite.

This recipe is perfect for families, parties, or simply satisfying your sweet tooth. They are ideal for casual gatherings or cozy nights in. You can store any leftovers in an airtight container for up to a week, though they may not last that long!

Why You’ll Love This Recipe

  • The cookies have a soft and chewy texture that melts in your mouth.
  • Combining peanut butter with marshmallow fluff creates a nostalgic flavor burst.
  • They’re ready in under 20 minutes, perfect for a quick treat.
  • The simple mixing and baking technique makes it easy for bakers of all levels.

What You’ll Need

Gather the following ingredients to make these delicious cookies:

For the Cookie Dough

  • 1 cup peanut butter
  • 1 cup sugar
  • 1 egg
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt

For the Filling

  • 1 cup marshmallow fluff

Consider using creamy peanut butter for a smoother texture.

Substitutions & Swaps

  • Substitute almond butter for peanut butter.
  • Use brown sugar for a deeper flavor.
  • Replace marshmallow fluff with homemade marshmallow if desired.
  • Can omit vanilla if unavailable.

How to Make It

Follow these steps to create the ultimate Fluffernutter Cookies.

1. Preheat

Preheat your oven to 350°F (175°C).

2. Mix

In a mixing bowl, combine peanut butter, sugar, egg, vanilla extract, baking soda, and salt. Mix until smooth.

Fluffernutter Cookies

3. Scoop

Scoop tablespoons of dough onto a baking sheet lined with parchment paper.

4. Indent

Press a small indentation in the center of each dough ball.

5. Bake

Bake for about 10-12 minutes or until golden brown.

6. Cool

Remove from the oven and let cool slightly.

7. Fill

Once cool, fill the indentation with a spoonful of marshmallow fluff. Enjoy your Fluffernutter Cookies!

How to Store It

Fridge: 1 week in an airtight container.
Freezer: Yes, for up to 3 months.
Reheat: Microwave for 10-15 seconds.

Tips for Best Results

  • Ensure your peanut butter is well-mixed for consistency.
  • Don’t overbake; aim for a golden edge for soft cookies.
  • Allow cookies to cool completely before adding marshmallow fluff.
  • Experiment with adding chocolate chips for extra sweetness.

Serving Suggestions

  • Pair with a glass of cold milk for a classic treat.
  • Serve as a delightful dessert at birthday parties.
  • Enjoy alongside a warm cup of coffee for a cozy afternoon break.

Fluffernutter Cookies

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