Ingredients
Equipment
Method
Prep
- Preheat oven to 350°F. Line two baking sheets with parchment paper.
- Whisk together flour, cocoa powder, baking soda, and salt in a medium bowl until no lumps remain.
- Beat butter, granulated sugar, and brown sugar on medium speed until light and fluffy, about 3 minutes. Scrape down the bowl.
- Beat in eggs one at a time, then vanilla, until fully incorporated. The mixture should look smooth and glossy.
- Reduce mixer to low and gradually add flour mixture. Mix just until no streaks of flour remain. Do not overmix.
- Stir in chocolate chips and 1 cup marshmallows by hand. Reserve remaining 1/2 cup marshmallows for topping.
- Scoop 2-tablespoon portions of dough and roll into balls. Roll each in granulated sugar for a crackly crust. Place 2 inches apart on prepared sheets.
- Bake 8 minutes, then remove from oven and gently press 2-3 reserved marshmallows into the top of each cookie. Return to oven for 3-4 minutes until marshmallows are puffed and slightly toasted. Let cool on sheets 5 minutes before transferring to a wire rack.
Notes
For extra fudgy centers, slightly underbake and let cookies finish setting on the hot pan. Freeze scooped dough balls for up to 3 months; bake straight from frozen, adding 2-3 minutes. These are best eaten within 2 days; store in an airtight container with a slice of bread to keep marshmallows soft.
