Fluffernutter Cookies

Fluffernutter Cookies

27 min

Fluffernutter Cookies are soft and chewy peanut butter cookies filled with marshmallow fluff for a sweet and ooey gooey treat!

Ingredients

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

Directions

  1. 1

    Preheat the oven to 350°F and line two large baking sheets with parchment paper.

  2. 2

    In a large bowl, add peanut butter, butter, and brown sugar. Using a hand mixer, combine the mixture until smooth and creamy, about 2-3 minutes.

  3. 3

    Scrape down the sides of the bowl. Add egg and vanilla and mix until combined (about 30 seconds).

  4. 4

    Add in flour, cornstarch, and salt.

  5. 5

    With the mixer on low, incorporate the ingredients until just combined (30 seconds-1 minute).

  6. 6

    Using a 2-tablespoon cookie scoop, drop dough onto the lined baking sheets. Using your hand, flatten each dough ball into a flat disk shape about 3-inches across.

  7. 7

    Using two spoons (this will keep your hands from getting sticky), add about 1 tablespoon of marshmallow fluff to the center of each disk of dough.

  8. 8

    Bring the dough up around the marshmallow fluff, completely covering the fluff and forming a ball. Place on the lined baking sheets.

  9. 9

    Bake the cookies for 10-12 minutes, or until the edges are brown. Watch the cookies carefully so that the marshmallow does not burn.

  10. 10

    Let the cookies rest for 10-15 minutes before serving.