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Peanut Butter Marshmallow Cookie

These Peanut Butter Marshmallow Cookies are soft, chewy, and loaded with creamy peanut butter flavor and gooey mini marshmallows. They’re the perfect easy dessert, cookie recipe, holiday cookies, homemade treats, family baking recipe, and sweet snack for any occasion. Whether you’re looking for fun baking ideas, easy cookies for parties, or a delicious afternoon treat, these cookies are guaranteed to become a favorite.

  • Total Time: 25 minutes
  • Yield: 24 cookies 1x

Ingredients

Scale
  • 1¼ cups gluten-free flour (or all-purpose flour)
  • 1 teaspoon baking soda
  • ½ teaspoon sea salt
  • ½ cup unsalted butter, softened
  • ½ cup granulated sugar
  • ¾ cup packed brown sugar
  • ¾ cup creamy peanut butter
  • 1 large egg
  • 2 teaspoons vanilla extract
  • 1¼ cups frozen mini marshmallows

Instructions

  1. Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
  2. Whisk together the flour, baking soda, and salt.
  3. Beat the butter, granulated sugar, brown sugar, and peanut butter until fluffy.
  4. Mix in the egg and vanilla extract.
  5. Gradually stir the dry ingredients into the wet ingredients.
  6. Fold in the frozen mini marshmallows.
  7. Scoop dough onto prepared baking sheets about 2 inches apart.
  8. Bake for 10–12 minutes until the edges are lightly golden.
  9. Cool on the baking sheet for 5 minutes before transferring to a wire rack.

Notes

  • Freeze the marshmallows before mixing them into the dough for the best texture.
  • Slightly underbake the cookies to keep the centers soft and chewy.
  • Store cookies in an airtight container to maintain freshness.
  • Author: Emmy Carter
  • Prep Time: 15 minutes
  • Cook Time: 10 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Keywords: peanut butter marshmallow cookie, peanut butter cookies, marshmallow cookies, easy cookie recipe, chewy peanut butter cookies, homemade cookies, gluten-free cookies, dessert recipe