Rich chocolate cookies with gooey marshmallow centers and a luscious chocolate swirl — a dreamy treat for chocolate lovers!

Why You’ll Love This Recipe

• Soft, fudgy chocolate cookies with melty marshmallow centers.

• Easy chocolate ganache swirl adds extra decadence.

• Perfect for dessert, snacking, or sharing with friends.

• Can be made ahead and stored or frozen.

Ingredients

Cookies

• 1½ cups all-purpose flour

• ½ cup Dutch-process cocoa powder

• 1 tsp baking soda

• ½ tsp sea salt

• ½ cup unsalted butter, softened

• 1 cup granulated sugar

• 1 large egg + 1 yolk

• 2 tsp vanilla extract

• ¼ cup buttermilk

Chocolate Swirl

• 12 large marshmallows (or ¼ cup mini marshmallows per cookie)

• ½ cup dark chocolate chips

• 2 tbsp heavy cream

Prep Time: 20 minutes
Cook Time: 12 minutes
Total Time: 32 minutes
Yield: 12–14 cookies

Directions

Step 1: Make the Dough

Whisk flour, cocoa, baking soda, and salt in a bowl; set aside. In another bowl, cream butter and sugar for 3 minutes until fluffy. Beat in egg, yolk, and vanilla. Alternate adding dry ingredients and buttermilk in 3 additions. Chill dough 30 minutes.

Step 2: Create the Swirl

Microwave chocolate chips and cream in 20-second bursts until smooth; cool slightly.

Step 3: Assemble Cookies

Scoop 2-tbsp dough balls, press 1 marshmallow (or mini marshmallow cluster) into the center, sealing dough around it.

Step 4: Bake & Swirl

Bake at 350°F (175°C) for 10–12 minutes until edges are set. Immediately drizzle with chocolate ganache and swirl with a toothpick.

Step 5: Set & Serve

Cool 15 minutes on the pan; marshmallow firms up as it cools. Serve warm or store in an airtight container.

Tips & Variations

• Mini marshmallows: Easier to portion for smaller cookies.

• Chocolate type: Use milk, dark, or semi-sweet chocolate for the ganache.

• Storage: Keep in an airtight container for up to 3 days or freeze unbaked dough.

Frequently Asked Questions

Can I make these ahead?
Yes, the dough can be chilled overnight. Bake straight from the fridge, adding 1–2 minutes if needed.

Can I skip the ganache?
Yes, the cookies are delicious on their own; the swirl is optional but adds extra indulgence.

Can I use regular cocoa powder?
Yes, Dutch-process cocoa adds richness, but natural cocoa works too.

Final Thoughts

These Chocolate Marshmallow Cookies are a chocolate lover’s dream — soft, fudgy, gooey, and perfect for satisfying any sweet craving!