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Chocolate Marshmallow Swirl Cookies Recipe

4.4 from 43 reviews

Delight in these rich Chocolate Marshmallow Swirl Cookies, where deep cocoa-infused dough is studded with gooey mini marshmallows creating a perfect balance of chocolatey goodness and chewy sweetness. These cookies are easy to bake, offering a soft center with slightly crisp edges, ideal for satisfying any sweet tooth.

Ingredients

Scale

Dry Ingredients

  • 2 ¼ cups all-purpose flour
  • ½ cup unsweetened cocoa powder
  • 1 tsp baking soda
  • ½ tsp salt

Wet Ingredients

  • 1 cup unsalted butter, softened
  • ¾ cup granulated sugar
  • ¾ cup brown sugar
  • 2 large eggs
  • 2 tsp vanilla extract

Add-ins

  • 1 ½ cups mini marshmallows

Instructions

  1. Preheat Oven: Preheat your oven to 180°C (350°F) and line two baking sheets with parchment paper to ensure the cookies don’t stick and bake evenly.
  2. Mix Dry Ingredients: In a medium bowl, whisk together the all-purpose flour, unsweetened cocoa powder, baking soda, and salt until well combined. This will provide the base structure and chocolate flavor to the cookies.
  3. Cream Butter and Sugars: In a large bowl, cream the softened unsalted butter with granulated sugar and brown sugar until the mixture is light and fluffy, which helps to create a tender cookie texture.
  4. Add Eggs and Vanilla: Beat the eggs in one at a time, ensuring each is fully incorporated before adding the next. Then mix in the vanilla extract for added flavor.
  5. Combine Wet and Dry: Gradually add the dry flour mixture to the wet butter mixture, mixing slowly just until combined. Avoid overmixing to maintain a tender crumb.
  6. Fold in Marshmallows: Gently fold the mini marshmallows into the dough using a spatula, distributing them evenly without crushing to keep their shape and gooey texture.
  7. Form Cookies: Using a tablespoon or small cookie scoop, drop the dough onto the prepared baking sheets, spacing each cookie about 5 cm (2 inches) apart to allow for spreading.
  8. Optional Decoration: Press a few extra mini marshmallows on top or gently swirl marshmallows into the dough for a decorative, inviting look.
  9. Bake: Bake the cookies in the preheated oven for 10–12 minutes, or until the edges are set but the centers remain soft for a chewy texture.
  10. Cool: Let the cookies cool on the baking sheet for 5 minutes to firm up, then transfer them to a wire rack to cool completely before serving.

Notes

  • For best results, do not overmix the dough to keep cookies tender and chewy.
  • You can substitute mini marshmallows with regular marshmallows chopped into smaller pieces if unavailable.
  • Pressing some marshmallows on top before baking adds a lovely visual swirl and extra gooeyness.
  • Store cookies in an airtight container at room temperature for up to 5 days to maintain freshness.
  • To freeze, place baked cookies in a sealed freezer bag for up to 3 months; thaw at room temperature before serving.

Keywords: Chocolate cookies, marshmallow cookies, chocolate marshmallow cookies, chewy cookies, homemade cookies, dessert, chocolate treats