These Hot Chocolate Cookies are everything you love about a cozy mug of cocoa—transformed into a soft, chewy cookie. Rich chocolate flavor, hints of cocoa mix, and gooey marshmallows tucked inside make these cookies perfect for holidays, winter gatherings, or anytime you want a comforting chocolate treat.
10 tablespoons unsalted butter, softened
½ cup light brown sugar, packed
¾ cup granulated sugar, divided
1 large egg
1 teaspoon vanilla extract
2 ¼ cups all-purpose flour
1 (1-ounce) packet hot chocolate mix
3 tablespoons unsweetened cocoa powder
½ teaspoon baking soda
½ teaspoon kosher salt
120 mini marshmallows
Preheat oven to 350°F (175°C). Line baking sheets with parchment paper and set aside.
In a large bowl, beat butter, brown sugar, and ½ cup granulated sugar until light and fluffy (2–3 minutes).
Add egg and vanilla extract. Beat until combined.
Add flour, hot chocolate mix, cocoa powder, baking soda, and salt. Mix just until a soft dough forms. Do not overmix.
Scoop dough using a 1½–2 tablespoon cookie scoop to make 24 equal portions. Roll into balls and flatten slightly into discs.
Place 5–6 mini marshmallows in the center of each disc. Wrap dough around marshmallows, sealing completely.
Roll each ball in remaining ¼ cup granulated sugar to coat.
Place cookies a few inches apart on prepared baking sheets.
Bake for 10–12 minutes, until tops crack and marshmallows peek through.
Cool on wire racks for about 15 minutes before serving.
Cookies will look very soft when removed from the oven but firm up as they cool.
Be sure marshmallows are fully enclosed to prevent excessive melting.
For extra flavor, add chocolate chips, peppermint bits, or chopped nuts.
Store cookies in an airtight container at room temperature for up to 1 week.
Freeze baked cookies (wrapped well) for up to 3 months.