Ingredients
Equipment
Method
Make the dough
- Heat the oven to 350°F.
- Line two 18x13-inch baking sheets with parchment paper.
- Whisk the flour, hot cocoa mix, cocoa powder, baking soda, and salt together in a medium bowl.
- Beat the butter, granulated sugar, and brown sugar in a large bowl with an electric mixer on medium speed until light and fluffy, about 2 minutes.
- Beat in the eggs one at a time.
- Beat in the vanilla.
- Mix in the flour mixture on low speed just until no dry streaks remain.
- Stir in the chocolate chips.
- Scoop the dough into 24 portions, about 2 tablespoons each.
- Space the portions about 2 inches apart on the prepared baking sheets.
Bake and top the cookies
- Bake at 350°F for 8 minutes.
- Remove the sheets from the oven and place one marshmallow half, cut-side down, on each cookie.
- Return the sheets to the oven and bake for 2–3 minutes, until the cookie edges are set and the marshmallows are soft.
- Cool the cookies on the baking sheets for 5 minutes.
- Transfer the cookies to a wire rack to cool.
Notes
For an even marshmallow topping, place each half cut-side down. Store in an airtight container at room temperature for up to 4 days; freeze for up to 2 months. For a dairy-free variation, use dairy-free butter and chocolate chips, and check that the cocoa mix and marshmallows are dairy-free.
