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Close-up of a cracked dark chocolate cookie swirled with creamy peanut butter and featuring a gooey, slightly charred marshmallow in the center. (Chocolate Peanut Butter Marshmallow Cookies)

Chocolate Peanut Butter Marshmallow Cookies (The Ultimate Gooey Treat)

The ultimate recipe for thick and fudgy Chocolate Peanut Butter Marshmallow Cookies. Features a cracked dark chocolate base, creamy peanut butter swirls, and a perfectly toasted, gooey marshmallow center for an unforgettable dessert experience.
Prep Time 20 minutes
Cook Time 14 minutes
Total Time 34 minutes
Servings: 12 cookies
Course: Dessert
Cuisine: American
Calories: 285

Ingredients
  

  • 1/2 cup Unsalted Butter, softened (113g)
  • 3/4 cup Light Brown Sugar, packed (150g)
  • 1/4 cup Granulated Sugar (50g)
  • 1 Large Egg, room temperature
  • 1 tsp Vanilla Extract (5ml)
  • 1 cup All-Purpose Flour (120g)
  • 1/2 cup Dutch-Process Cocoa Powder (60g)
  • 1/2 tsp Baking Soda
  • 1/4 tsp Sea Salt
  • 1/3 cup Creamy Peanut Butter (85g)
  • 12 Large Marshmallows

Equipment

  • Baking Sheets
  • Parchment paper
  • Stand mixer or hand mixer
  • Cookie Scoop

Instructions
 

  1. In a large bowl, cream the softened butter, brown sugar, and granulated sugar with a mixer on medium speed until light and fluffy, about 2-3 minutes. Beat in the egg and vanilla extract until just combined.
  2. In a separate medium bowl, whisk together the flour, Dutch-process cocoa powder, baking soda, and sea salt. On low speed, gradually add the dry ingredients to the wet ingredients, mixing only until a few streaks of flour remain.
  3. Use a cookie scoop to portion the dough into 12 balls. Create a deep indentation in each ball and spoon about a teaspoon of peanut butter into it. Cover and chill in the refrigerator for at least 60 minutes.
  4. Preheat oven to 350°F (175°C). Place chilled dough balls on a parchment-lined baking sheet 2-3 inches apart. Bake for 10 minutes.
  5. Remove from oven and gently press a large marshmallow into the center of each cookie. Return to the oven and bake for another 2-4 minutes until marshmallows are puffed.
  6. For a charred top, use a kitchen torch to toast the marshmallows or place under the oven broiler for 30-60 seconds, watching constantly to prevent burning. Let cool on the baking sheet for a few minutes before transferring to a wire rack.

Notes

Do Not Overmix: Mix the flour in only until it's just combined to ensure a fudgy texture.
Don't Skip the Chill: Chilling the dough for at least an hour is crucial for thick cookies that don't spread too much.
Room Temperature Ingredients: Using room temperature butter and eggs ensures a smooth, uniform dough.
Uniform Size: Use a cookie scoop for evenly sized cookies that bake consistently.
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