Hot Chocolate Cookies (Rich Chocolate Cookies with Gooey Marshmallow)
Hot chocolate cookies take everything great about a cozy mug of cocoa — deep chocolate flavor, a melting marshmallow, that hint of warmth — and turn it into a bakery-style cookie. The dough itself is loaded with cocoa powder plus real hot cocoa mix, so every bite tastes like the drink, not just another chocolate cookie.
The trick is in the two-stage bake. The cookies bake first until just set, then a halved marshmallow gets pressed into the warm center and returned to the oven until it puffs, softens, and toasts to a golden brown. A quick drizzle of melted chocolate over the top finishes them off.
These are a natural fit for Christmas baking trays, cookie swaps, and winter dessert tables — they look impressive, feed a crowd, and disappear fast.
Why You'll Love This Recipe
- Real hot-cocoa flavor — hot cocoa mix plus cocoa powder gives the dough an unmistakable chocolatey depth
- Gooey toasted marshmallow centers — pressed in after the first bake so they melt without overcooking
- Bakery-style look, easy method — the two-stage bake and chocolate drizzle do all the visual work
- Holiday-ready — Christmas-worthy cookies that make cookie trays and gift boxes look great
- Feeds a crowd — one batch makes about 24 cookies, perfect for parties and swaps
Ingredients
- 1 cup (227 g) unsalted butter, softened to room temperature
- 1 cup (200 g) granulated sugar
- 3/4 cup (165 g) packed light brown sugar
- 2 large eggs, at room temperature
- 2 teaspoons vanilla extract
- 2 1/4 cups (280 g) all-purpose flour
- 1/2 cup (45 g) Dutch-process unsweetened cocoa powder
- 1/2 cup (55 g) instant hot cocoa mix (about 2 standard packets)
- 1 teaspoon baking soda
- 3/4 teaspoon fine sea salt
- 1 cup (170 g) semisweet chocolate chips, plus 1/2 cup (85 g) more for the drizzle
- 12 large marshmallows, halved crosswise (24 halves)
Instructions
- Preheat the oven to 350°F (175°C). Line two baking sheets with parchment paper and set aside.
- In a large mixing bowl, beat the softened butter with the granulated sugar and brown sugar on medium-high speed for 2–3 minutes, until light and fluffy. Scrape down the sides of the bowl.
- Add the eggs one at a time, beating well after each addition, then beat in the vanilla extract until smooth and glossy.
- In a separate medium bowl, whisk together the flour, cocoa powder, hot cocoa mix, baking soda, and salt until no cocoa lumps remain.
- Add the dry mixture to the wet mixture in two additions, mixing on low speed just until combined. Fold in 1 cup of the chocolate chips with a spatula. Do not overmix.
- Scoop the dough into 2-tablespoon balls (about 24) and arrange them 2 inches apart on the prepared baking sheets. Bake for 8–9 minutes, until the edges are set but the centers still look slightly soft.
- Remove the sheets from the oven. Working quickly, press one marshmallow half (cut side down) into the center of each cookie, pushing it gently into the warm dough. Return the sheets to the oven and bake for 2–3 minutes more, until the marshmallows puff and just begin to toast.
- Cool the cookies on the baking sheets for 5 minutes — the marshmallows will settle slightly as they cool — then transfer to a wire rack.
- Melt the remaining 1/2 cup of chocolate chips in the microwave in 20-second bursts, stirring between each, until smooth. Drizzle over the cooled cookies with a fork or spoon. Let the drizzle set for about 20 minutes before serving or stacking.
Tips for Success
- Use both cocoa powder and hot cocoa mix. The cocoa powder brings deep chocolate flavor; the hot cocoa mix adds that unmistakable creamy cocoa-drink sweetness and helps keep the crumb tender.
- Don't skip the softened butter. Room-temperature butter creams properly with the sugars for a thick, bakery-style cookie. Melted butter will make the cookies spread thin and crisp.
- Underbake slightly. Pull the cookies at 8–9 minutes when the centers still look a touch soft. They finish setting on the hot pan, and overbaking makes them cakey instead of fudgy.
- Press the marshmallows in right away. The marshmallow needs the heat of the just-baked cookie to bond — if you wait, it sits on top instead of melting into the center.
- Cut the marshmallows in half. Whole marshmallows are too tall and tip over; halved marshmallows press flat into the cookie and toast evenly.
- Let the drizzle set. Give the melted chocolate at least 20 minutes to firm up before stacking the cookies, or it will smear.
Variations
- Peppermint hot chocolate cookies: add 1/2 teaspoon peppermint extract to the dough and top the drizzle with crushed candy canes.
- Mexican hot chocolate cookies: add 1 teaspoon ground cinnamon and a pinch of cayenne to the dry ingredients for a warm-spiced twist.
- Salted caramel version: drizzle with melted caramel sauce instead of (or alongside) the chocolate, and sprinkle with flaky sea salt.
- White chocolate drizzle: swap the semisweet drizzle for melted white chocolate for a striking dark-and-white contrast.
- Mini marshmallow studding: fold 1 cup of mini marshmallows into the dough along with the chips instead of pressing halves on top — some will toast in the oven for a rustic look.
- Double chocolate chunk: swap the semisweet chips for chopped dark chocolate chunks in the dough for bigger melted pockets.
Storage
Store cooled hot chocolate cookies in an airtight container at room temperature for up to 4 days, with parchment paper between layers so the marshmallow tops don't stick together. The unbaked dough balls can be refrigerated for up to 48 hours before baking, or frozen for up to 3 months — bake frozen dough directly, adding 1–2 minutes to the first bake stage, then proceed with the marshmallow step. Baked cookies also freeze well for up to 3 months; thaw at room temperature and refresh in a 300°F (150°C) oven for 3–4 minutes to revive the gooey centers.
FAQ
Why do I add the marshmallows after the first bake instead of at the start?
Marshmallows can’t survive a full bake — they melt flat, scorch, or slide off. Baking the cookies for 8–9 minutes first sets the base, then the marshmallow only needs 2–3 minutes to puff, soften, and lightly toast without burning.
Can I use mini marshmallows instead of halved large marshmallows?
You can, but the result is different. Halved large marshmallows create one dramatic gooey center per cookie. Mini marshmallows work best folded into the dough, where they toast into chewy pockets throughout.
Do I need hot cocoa mix, or can I use all cocoa powder?
The recipe works with all cocoa powder, but the hot cocoa mix is what makes these taste like actual hot chocolate rather than generic chocolate cookies. Use a plain milk-chocolate-style mix without added marshmallow bits for the best result.
How do I keep the cookies from spreading too much?
Make sure the butter is softened, not melted, and measure the flour by spooning it into the cup and leveling it off. If your kitchen is warm and the dough feels very soft, chill the scooped balls for 15 minutes before the first bake.
Recipe Card
- Prep time: 15 minutes
- Cook time: 12 minutes
- Total time: 27 minutes
- Servings: 24 cookies
- Estimated calories per serving: ~185
Hi, I’m Emma! I’m the cook and recipe developer behind Sizzle & Sage. From my sunny home kitchen, I share easy, flavor-packed recipes for real life — quick breakfasts, cozy weeknight dinners, and simple bakes anyone can make. Pull up a chair and stay a while!
