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Chewy marshmallow cookies with a soft, gooey texture and marshmallow chunks

Marshmallow Cookies

Delightful marshmallow cookies with a chewy texture and gooey marshmallow fluff, perfect for a comforting dessert.
Prep Time 20 minutes
Cook Time 12 minutes
Total Time 32 minutes
Course Dessert
Cuisine American
Servings 24 cookies
Calories 150 kcal

Ingredients
  

Cookie Base

  • 1 cup unsalted butter, softened This adds creaminess.
  • 1 cup creamy peanut butter Adds a nutty depth.
  • 1.5 cups light brown sugar Lends rich sweetness.
  • 2 large eggs Provides moisture and binding.
  • 2 cups all-purpose flour The foundation for your dough.
  • 1 cup old-fashioned oats Contributes a chewy texture.
  • 1 teaspoon baking soda Ensures a light, airy cookie.
  • 0.5 teaspoon kosher salt Enhances all the flavors.

Mix-ins

  • 1.5 cups plain M&M candies For a colorful crunch.
  • 1.5 cups semi-sweet chocolate chips Perfect for chocolate lovers.
  • 7 oz marshmallow fluff Creates the gooey center.
  • optional mini M&M candies for topping For an extra pop of fun.

Instructions
 

Preparation

  • Preheat your oven to 350°F (175°C).
  • In a large mixing bowl, combine the softened unsalted butter and creamy peanut butter. Cream together until light and fluffy, then gradually add the light brown sugar until fully combined.
  • Add the eggs to the mixture and beat until fully incorporated.
  • In a separate bowl, whisk together the all-purpose flour, old-fashioned oats, baking soda, and kosher salt.
  • Gradually add the dry ingredients to the wet mixture, stirring gently until just combined.
  • Fold in the plain M&M candies and semi-sweet chocolate chips.
  • Add the marshmallow fluff and fold into the cookie dough, leaving some swirls.
  • Using a cookie scoop, drop dough balls onto a lined baking sheet, spacing them about 2 inches apart. Sprinkle with mini M&M candies if desired.

Baking

  • Bake for 10-12 minutes, until edges are lightly golden and centers look slightly underbaked.
  • Let cookies cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.

Notes

Chill the dough for about 30 minutes for a thicker cookie. Store cookies in an airtight container at room temperature for up to a week or freeze in a single layer for up to three months.
Keyword Baking, Chewy Cookies, Dessert Recipe, Marshmallow Cookies, Peanut Butter Cookies