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Fudgy chocolate cookies with gooey marshmallow swirls and melted chocolate pieces.

Chocolate Marshmallow Swirl Cookies


  • Author: Emma Hart
  • Total Time: 25
  • Yield: 24 cookies 1x
  • Diet: Vegetarian

Description

Rich, fudgy cookies with gooey marshmallow fluff swirled throughout, combining the decadent texture of brownies with an indulgent creaminess. Perfect for festive occasions or satisfying chocolate cravings.


Ingredients

Scale
  • 2 cups all-purpose flour
  • ¾ cup unsweetened cocoa powder
  • ½ tsp baking soda
  • ¼ tsp salt
  • 1 cup unsalted butter, softened
  • 1½ cups granulated sugar
  • 2 large eggs, room temperature
  • 2 tsp vanilla extract
  • 1 cup marshmallow fluff

Instructions

  1. Preheat oven to 350°F (175°C). Line two baking sheets with parchment or silicone mats.
  2. Whisk flour, cocoa powder, baking soda, and salt together in a bowl.
  3. Beat butter and sugar until light and fluffy, about 2–3 minutes.
  4. Add eggs one at a time, then vanilla, scraping sides as needed.
  5. Add dry ingredients gradually on low speed; mix until just combined.
  6. Spoon marshmallow fluff over dough and gently fold a few times to create visible swirls without fully blending.
  7. Scoop 1½-tablespoon portions onto baking sheets 2 inches apart. Bake 9–11 minutes until edges set but centers soft.
  8. Rest 5 minutes on pan before transferring to rack. Serve warm for gooey centers or cool for chewy texture.

Notes

Lightly fold marshmallow to keep distinct swirls.

Chill dough 20–30 minutes before baking for thicker cookies.

Use dark cocoa powder for richer chocolate flavor.

Sprinkle flaky salt after baking for a gourmet touch.

Store airtight at room temperature up to 4 days or freeze dough for 2 months.

  • Prep Time: 15
  • Cook Time: 10
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 cookie
  • Calories: 185
  • Sugar: 15g
  • Sodium: 85mg
  • Fat: 10g
  • Saturated Fat: 6g
  • Unsaturated Fat: 3g
  • Carbohydrates: 22g
  • Fiber: 1g
  • Protein: 2g
  • Cholesterol: 40mg

Keywords: chocolate marshmallow cookies, gooey fudge cookies, brownie swirl cookies, holiday chocolate dessert, marshmallow fluff cookies