Print

Fluffernutter Cookies Recipe

4.6 from 242 reviews

Delightfully soft and chewy Fluffernutter Cookies featuring a perfect blend of peanut butter and marshmallow fluff inside a sweet, sugar-coated dough. These cookies are easy to make, baked to golden perfection, and offer a nostalgic flavor that combines rich peanut butter with gooey marshmallow for a comforting treat.

Ingredients

Scale

Dry Ingredients

  • 1 3/4 cup All-Purpose Flour
  • 1 tsp Baking Soda
  • 1/2 tsp Salt

Wet Ingredients

  • 1/2 cup Creamy Peanut Butter
  • 1/2 cup Unsalted Butter (room temperature)
  • 1/2 cup Granulated Sugar
  • 1/2 cup Light Brown Sugar
  • 1 Large Egg
  • 1 tsp Vanilla Extract

Filling and Coating

  • 1 cup Marshmallow Fluff
  • Additional 1/4 cup Granulated Sugar (for coating)

Instructions

  1. Prep the oven and baking sheets: Adjust your oven rack to the second level (just above center) and preheat your oven to 350ºF (175ºC). Line two baking sheets with parchment paper and set aside.
  2. Mix dry ingredients: In a small bowl, whisk together 1 3/4 cups all-purpose flour, 1 teaspoon baking soda, and 1/2 teaspoon salt until evenly combined. Set this mixture aside for later.
  3. Cream butter and peanut butter: Using a stand mixer or hand mixer, beat together the 1/2 cup creamy peanut butter and 1/2 cup room temperature unsalted butter until they are nicely blended and smooth.
  4. Add sugars: Add 1/2 cup granulated sugar and 1/2 cup light brown sugar to the peanut butter mixture. Mix thoroughly until the mixture is well combined and fluffy.
  5. Incorporate egg and vanilla: Add 1 large egg and 1 teaspoon vanilla extract to the wet ingredients. Mix until the mixture is fully combined and smooth.
  6. Combine dry and wet ingredients: Gradually add the dry ingredient mixture to the wet ingredients. Mix just until all ingredients are combined and no flour streaks remain. Do not overmix.
  7. Form cookie discs: Using a 2-tablespoon cookie scoop, scoop out a ball of cookie dough and place it on the prepared baking sheet lined with parchment paper. With your fingers, gently press the ball down to form a round disc approximately 3 inches in diameter.
  8. Add marshmallow fluff filling: Using a 1-tablespoon cookie scoop, place a small ball of marshmallow fluff (or 5-6 mini marshmallows) in the center of each cookie disc. Carefully fold the dough over the fluff and reform into a ball, ensuring the fluff is enclosed inside.
  9. Roll in sugar: Roll each dough ball in the additional 1/4 cup granulated sugar to coat. Place the sugar-coated balls back onto the baking sheet, spacing them evenly. Each baking sheet should hold about 6 cookies.
  10. Bake: Bake the cookies in the preheated oven for 10-12 minutes. They will spread out during baking. If you prefer thicker, smaller cookies, gently press them into shape with a large round cookie cutter immediately after removing from the oven.
  11. Cool: Let the cookies cool on the baking sheets for 5-10 minutes, then transfer them to a wire rack to cool completely before serving or storing.
  12. Storage: Store cookies in an airtight container at room temperature for up to 5 days. For longer storage, freeze cookies in a freezer-safe container or bag for up to 3 months. Thaw at room temperature for 1-3 hours before serving.

Notes

  • Marshmallow fluff is also called marshmallow creme; alternatively, you can use 5-6 mini marshmallows as a substitute for each tablespoon of fluff.
  • For best results, scoop out cookie dough balls first, then flatten them, add marshmallow fluff, and reform the dough around the filling.
  • A 2-tablespoon cookie scoop works well for the dough, and a 1-tablespoon scoop is ideal for the marshmallow fluff.
  • Rolling cookie dough balls in granulated sugar before baking adds a pleasant sweet crunch but is optional.
  • The cookies will spread during baking; you can reshape them right out of the oven with a round cookie cutter if you want a smaller, thicker cookie.

Keywords: Fluffernutter Cookies, peanut butter cookies, marshmallow cookies, soft cookies, baked cookies, sweet snack, dessert