These Hot Chocolate Cookies are the ultimate cozy treat! Soft and fudgy chocolate cookies are stuffed with gooey marshmallows, rolled in sugar, and baked to perfection. Perfect for chilly nights or holiday gatherings, they bring all the warm, chocolatey goodness of hot cocoa into every bite.
In a medium bowl, whisk together the flour, cocoa powder, baking soda, and salt. Set aside.
In a large bowl or the bowl of an electric mixer, beat the butter and brown sugar on medium speed until fluffy, about 1-2 minutes. Add the egg and vanilla extract, mixing until fully combined.
Slowly mix the dry ingredients into the wet ingredients until a dough forms.
Scoop 2 tablespoons of dough, roll into a ball, and flatten slightly. Place 4 mini marshmallows in the center. Fold the dough around the marshmallows, sealing any gaps to keep them inside.
Refrigerate the stuffed dough balls for at least 1 hour.
Preheat the oven to 350°F.
Roll each chilled dough ball in granulated sugar and place on a baking tray, spacing them 2 inches apart.
Bake for 10-12 minutes, or until the edges begin to lift from the tray. Let cool on the tray for 5 minutes before serving.