Chocolate Marshmallow Swirl Cookies are soft, chewy, and packed with rich chocolate flavor, featuring gooey marshmallow swirls in every bite. These decadent cookies are perfect for chocolate lovers, combining the fudgy texture of a brownie with the sweet, melty goodness of marshmallow. Whether for holiday treats, parties, or simply a sweet indulgence, these cookies are sure to be a crowd-pleaser!
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For the Cookies
- 1 cup (225 g) unsalted butter, softened
- 1 cup (200 g) granulated sugar
- 1/2 cup (100 g) brown sugar, packed
- 2 large eggs
- 1 tsp vanilla extract
- 2 cups (250 g) all-purpose flour
- 1/2 cup (50 g) unsweetened cocoa powder
- 1 tsp baking soda
- 1/2 tsp salt
- 1 cup (180 g) chocolate chips or chunks
- 1 cup (100 g) mini marshmallows
Directions
Step 1: Preheat the Oven
- Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper or a silicone baking mat.
Step 2: Make the Dough
- In a large mixing bowl, beat the softened butter, granulated sugar, and brown sugar until light and fluffy (about 2-3 minutes).
- Add the eggs one at a time, beating well after each addition. Stir in the vanilla extract.
- In a separate bowl, whisk together the flour, cocoa powder, baking soda, and salt.
- Gradually add the dry ingredients to the wet ingredients, mixing just until combined.
Step 3: Add the Mix-ins
- Fold in the chocolate chips or chunks and mini marshmallows. Be careful not to overmix, as marshmallows can become sticky.
Step 4: Scoop and Bake
- Using a cookie scoop or tablespoon, drop portions of dough onto the prepared baking sheet, spacing them about 2 inches apart.
- Bake for 9-11 minutes, or until the edges are set but the centers remain soft.
- Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.
Notes
- Marshmallow tip: If marshmallows melt too much, freeze them for 10-15 minutes before mixing them into the dough.
- Chocolate options: Use dark chocolate chips for a deeper chocolate flavor or white chocolate for contrast.
- Storage: Store cookies in an airtight container at room temperature for up to 5 days.
Why This Recipe Works
The balance of rich cocoa, melted chocolate chunks, and gooey marshmallows creates a chewy, fudgy texture with a delightful contrast of flavors. The slightly crispy edges and soft center make these cookies irresistible.
Conclusion
Chocolate Marshmallow Swirl Cookies are a must-try for anyone who loves chocolate and marshmallow together. With their chewy texture, rich flavor, and gooey swirls, they make the perfect treat for any occasion. Bake a batch today and enjoy these deliciously indulgent cookies!
Frequently Asked Questions

Chocolate Marshmallow Swirl Cookies
Ingredients
Main Ingredients
- 1.5 cups all-purpose flour
- 0.5 cup unsweetened cocoa powder
- 1 tsp baking soda
- 0.25 tsp salt
- 0.75 cup butter softened
- 1 cup sugar
- 1 tsp vanilla extract
- 1 egg
- 1 cup mini marshmallows
Instructions
Preparation Steps
- Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
- In a bowl, mix the flour, cocoa powder, baking soda, and salt.
- In a separate bowl, cream together the butter and sugar until light and fluffy. Add in the vanilla extract and egg, and beat well.
- Gradually add the dry ingredients to the wet ingredients and mix until just combined. Fold in the mini marshmallows.
- Drop tablespoons of dough onto the prepared baking sheet, leaving enough space for spreading.
- Bake for 8-10 minutes, or until the cookies are set around the edges.
- Let the cookies cool on the baking sheet for a few minutes, then transfer to a wire rack to cool completely.