Ingredients
For the Cookies:
- 1 cup unsalted butter, softened
- 1 cup granulated sugar
- 1 cup brown sugar, packed
- 2 large eggs
- 2 teaspoons vanilla extract
- 2 ½ cups all-purpose flour
- ¾ cup unsweetened cocoa powder
- 1 teaspoon baking soda
- ½ teaspoon salt
- 1 cup semi-sweet chocolate chips
For the Filling:
- ½ cup Nutella
- ½ cup marshmallow fluff (or marshmallow creme)
Instructions
- Prepare the Cookie Dough: In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy, about 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 until just combined. Fold in the semi-sweet chocolate chips. Cover the dough and refrigerate for at least 30 minutes to firm up.
- Assemble the Cookies: Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper. Scoop out about 2 tablespoons of dough and flatten it slightly in your hand. Place 1 teaspoon of Nutella in the center of the dough, then 1 teaspoon of marshmallow fluff on top. Gently press the edges to partially seal, leaving a small gap for marshmallow expansion. Take another tablespoon of dough, flatten it, and place it on top, sealing the edges completely around the filling. Repeat for the remaining dough, spacing cookies about 2 inches apart on the baking sheets.
- Bake the Cookies: Bake the cookies in the preheated oven for 10-12 minutes, until they are slightly cracked on top. The marshmallow fluff will melt into a smooth, gooey layer inside as they bake. Allow cookies to cool on the baking sheet for 5 minutes before transferring to a cooling rack to cool completely.
Notes
- Refrigerating the dough before baking helps prevent spreading and makes the cookies easier to assemble.
- Be careful not to overfill with Nutella and marshmallow to avoid dough bursting during baking.
- For a different flavor, try using white chocolate chips or adding chopped nuts.
- Store cookies in an airtight container at room temperature for up to 4 days.
- These cookies can also be frozen after assembly before baking; bake directly from frozen adding a couple of extra minutes to baking time.
- Prep Time: 20 minutes
- Cook Time: 12 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
