If you’re looking for a dessert that’s both cozy and indulgent, you’ve just hit the jackpot with this Hot Chocolate Brownies with Marshmallow Frosting Recipe. I absolutely love how these brownies feel like a warm hug wrapped in chocolate and marshmallows, which is perfect for any time you need a little comfort food magic. Stick with me, and I’ll walk you through every step to make sure your brownies come out perfectly fudgy and topped with the fluffiest, cloud-like marshmallow frosting you can dream of.
Why You’ll Love This Recipe
- Deliciously Fudgy: These brownies strike the perfect balance between rich chocolate and tender crumb without being cakey or dry.
- Fluffy Marshmallow Frosting: The topping is light, creamy, and sweet with a little vanilla kick—like the best part of hot chocolate in frosting form.
- Simple Ingredients: You probably already have most of these in your pantry, and the recipe comes together quickly.
- Perfect for Sharing: Whether it’s a cozy night in or a special celebration, these brownies always disappear fast.
Ingredients You’ll Need
I love that this Hot Chocolate Brownies with Marshmallow Frosting Recipe uses familiar ingredients that combine to create a deeply flavorful treat. I always recommend using good-quality chocolate and fresh eggs to make the flavors sing, and don’t skip the instant coffee—it really amplifies the chocolate without tasting like coffee at all!

- Unsalted Butter: Using unsalted butter gives you control over the salt level, and it melts beautifully with the chocolate.
- Semisweet Chocolate: Chopped chocolate melts evenly and provides a rich base flavor for the brownies.
- Granulated Sugar: For sweetness and that tender brownie texture you’ll love.
- Large Eggs: Eggs help bind everything together and add richness.
- Vanilla Extract: Just a splash enhances all the warm chocolate notes.
- Cocoa Powder: A must for that intense hot chocolate flavor.
- Instant Coffee Granules: Don’t worry—it gives depth with no overt coffee taste.
- All-Purpose Flour: Provides structure but keeps the brownies soft.
- Salt: Just a pinch to balance the sweetness and highlight flavors.
- Marshmallow Fluff: The star of the frosting—sweet, airy, and melts into the butter for perfection.
- Powdered Sugar: Adds sweetness and helps make the frosting smooth and spreadable.
Variations
One of the best things about this Hot Chocolate Brownies with Marshmallow Frosting Recipe is how adaptable it is. I often like to mix things up depending on what my family is craving or what I have on hand—you’ll find these tweaks really fun to experiment with!
- Add Nuts: When I toss in some chopped walnuts or pecans, the brownies get a lovely crunch that contrasts with the marshmallow frosting.
- Use Dark Chocolate: For a richer, slightly more bitter edge, I swap semisweet chocolate for dark chocolate chips—my chocolate-loving friends adore this version.
- Make It Gluten-Free: Using a gluten-free flour blend works beautifully for those avoiding gluten; just make sure to measure carefully.
- Mini Marshmallow Topping: Sometimes I toast mini marshmallows right on top of the frosting under the broiler for a campfire vibe everyone loves.
How to Make Hot Chocolate Brownies with Marshmallow Frosting Recipe
Step 1: Melt the Chocolate and Butter to Start
Begin by preheating your oven to 350°F (175°C) and prepping an 8×8-inch pan with parchment paper or grease—trust me, the parchment makes cleanup a breeze and keeps the brownies from sticking. Then, melt the butter and chopped semisweet chocolate together. I use a microwave-safe bowl and zap it in 30-second bursts, stirring in between to avoid overheating. If you have a double boiler, that works too. Let it cool just a bit so the eggs don’t scramble when you add them next.
Step 2: Mix the Wet Ingredients with Sugar and Eggs
Whisk in the granulated sugar, then add your eggs one at a time, beating well after each addition. This is when everything starts coming together into a glossy, rich batter. Don’t forget the vanilla extract here for that lovely aroma. Keep the rhythm steady—this part feels like magic as the batter thickens.
Step 3: Fold in the Cocoa, Coffee, Flour, and Salt
In a separate bowl, whisk together the cocoa powder, instant coffee granules, flour, and salt. The coffee is a secret weapon—it elevates the chocolate so beautifully without any bitterness. Gradually fold this dry mix into your wet batter just until combined. Over-mixing can make the brownies tough, so be gentle. I like to use a rubber spatula and fold with care.
Step 4: Bake and Cool the Brownies
Pour the batter into the prepared pan and smooth out the surface. Pop it into the oven for about 20-25 minutes. I always test mine with a toothpick—you’re aiming for a few moist crumbs on it, not completely dry. Overbaking means crumbly brownies, and underbaking means soggy. Once done, make sure the brownies cool completely before frosting. I learned this the hard way—frosting warm brownies makes a melty mess!
Step 5: Whip Up That Marshmallow Frosting
While the brownies are cooling, beat together the marshmallow fluff with softened butter, vanilla extract, and a pinch of salt until smooth and creamy. Gradually add the powdered sugar and keep beating until it’s light and fluffy. It reminds me of creamy clouds perfect for cuddling on top of your brownies.
Step 6: Frost, Dust, Slice, and Serve
Spread the marshmallow frosting evenly over the cooled brownies. I like to use the back of a spatula to create lovely peaks and swirls that catch the light. Finish it off with a light dusting of cocoa powder. Slice them into squares and get ready for compliments—you’re about to impress!
Pro Tips for Making Hot Chocolate Brownies with Marshmallow Frosting Recipe
- Careful with the Chocolate Melting: Take your time melting the butter and chocolate; overheating leads to grainy texture. Stir frequently and remove from heat before completely melted.
- Don’t Overmix the Batter: Mixing the flour too much develops gluten and makes brownies chewy instead of soft and fudgy.
- Cool Fully Before Frosting: It’s tempting to frost right away, but if the brownies are too warm the frosting will melt and slide off.
- Use Parchment Paper for Easy Removal: Lifting the whole batch out makes slicing cleaner and serving simpler.
How to Serve Hot Chocolate Brownies with Marshmallow Frosting Recipe

Garnishes
I usually keep it simple with a dusting of cocoa powder, but sprinkles, mini marshmallows, or even a drizzle of melted chocolate work wonders if you’re feeling fancy. For a festive twist, crushed peppermint is fantastic for wintertime servings.
Side Dishes
When I serve these brownies, I love pairing them with a cold glass of milk or even a cup of rich hot cocoa to keep the flavors in the same cozy family. A scoop of vanilla ice cream on the side makes dessert feel extra special.
Creative Ways to Present
For birthday parties or holiday gatherings, I’ve served these brownies in little paper cups lined up on a tray, each sprinkled with edible glitter and a mini candy cane stick. It’s a huge hit! You can also stack brownie squares with frosting in between for brownie “cakes” that wow your guests.
Make Ahead and Storage
Storing Leftovers
Keep your leftover brownies covered tightly with plastic wrap or in an airtight container at room temperature for up to 3 days. This keeps the marshmallow frosting soft and the brownies moist. I like to tuck them away on the counter so they’re always ready for a quick snack.
Freezing
I’ve frozen unfrosted brownie squares wrapped tightly in plastic wrap and foil before, which works great. The marshmallow frosting doesn’t freeze well, so I recommend frosting right after thawing. This way, you have fresh-tasting brownies anytime you want.
Reheating
To warm up brownies without melting the frosting, I gently microwave a brownie slice for 10-15 seconds—just enough to feel warm but not hot. This brings out the chocolate flavor and softens the texture without turning the frosting into a gooey mess.
FAQs
-
Can I make these Hot Chocolate Brownies with Marshmallow Frosting Recipe vegan?
While this recipe uses butter and eggs, you can experiment with vegan substitutes like plant-based butter and flax eggs, plus a vegan marshmallow fluff alternative. Keep in mind texture and flavor might vary a bit, so some trial and error may be necessary!
-
How do I get the marshmallow frosting fluffy and not sticky?
Using softened (not melted) butter and gradually adding powdered sugar while beating helps keep the frosting light and fluffy. Also, a pinch of salt balances sweetness and cuts any cloying stickiness.
-
What if I don’t have instant coffee granules?
You can skip the instant coffee, but it adds depth without bitterness, so I highly recommend it if you have it. Just a teaspoon won’t taste like coffee—promise!
-
Why did my brownies come out too cakey?
Overmixing after adding flour or baking too long often makes brownies cakey. For this recipe, fold just until combined and watch the baking time carefully—pull them from the oven when a toothpick has moist crumbs.
Final Thoughts
This Hot Chocolate Brownies with Marshmallow Frosting Recipe is a forever favorite in my kitchen because it perfectly nails that warm, comforting chocolate fix with a special fluffiness you don’t often see in brownies. Whether you’re baking for your family, friends, or just treating yourself to some sweet self-care, this recipe is one you’ll come back to time and again. Give it a try, and I can almost guarantee your loved ones will be asking for the recipe—just like mine do!
Print
Hot Chocolate Brownies with Marshmallow Frosting Recipe
- Prep Time: 20 minutes
- Cook Time: 25 minutes
- Total Time: 45 minutes
- Yield: 16 brownies (4×4 grid) 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
Indulge in these rich and fudgy Hot Chocolate Brownies topped with a fluffy marshmallow frosting. With a hint of coffee enhancing the deep chocolate flavor and a creamy, sweet topping dusted with cocoa powder, these brownies are perfect for any chocolate lover seeking a decadent treat.
Ingredients
Brownies
- 1/2 cup unsalted butter
- 4 ounces semisweet chocolate, chopped
- 1 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- 1/4 cup cocoa powder
- 1 teaspoon instant coffee granules
- 1/2 cup all-purpose flour
- 1/4 teaspoon salt
- Cocoa powder, for dusting
Marshmallow Frosting
- 1 cup marshmallow fluff
- 1/2 cup unsalted butter, softened
- 1 teaspoon vanilla extract
- Pinch of salt
- 1 cup powdered sugar
Instructions
- Preheat Oven: Preheat your oven to 350°F (175°C). Grease and line an 8×8-inch baking pan with parchment paper to prevent sticking and make it easy to remove the brownies after baking.
- Melt Chocolate and Butter: In a microwave-safe bowl or using a double boiler, gently melt the unsalted butter and semisweet chocolate together until smooth. Let the mixture cool slightly to avoid curdling eggs in the next step.
- Mix Batter: Whisk in the granulated sugar, eggs, and vanilla extract into the melted chocolate and butter mixture until fully combined and glossy.
- Add Dry Ingredients: In a separate bowl, whisk together the cocoa powder, instant coffee granules, all-purpose flour, and salt. Gradually fold this dry mixture into the wet mixture until just combined, being careful not to overmix to keep the brownies tender.
- Bake Brownies: Pour the batter into your prepared pan, smoothing the top with a spatula. Bake for 20-25 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs attached. Remove from oven and allow the brownies to cool completely in the pan.
- Prepare Marshmallow Frosting: In a mixing bowl, beat together the marshmallow fluff, softened butter, vanilla extract, and a pinch of salt until smooth and creamy. Gradually add the powdered sugar and continue beating until the frosting becomes light and fluffy, perfect for spreading.
- Frost Brownies: Once the brownies have cooled completely, spread the marshmallow frosting evenly over the top. Use a spatula to create peaks and texture for a beautiful, inviting look.
- Garnish and Serve: Dust the top of the frosting lightly with cocoa powder for an elegant finish. Slice the brownies into squares and serve immediately or store for later enjoyment.
Notes
- Ensure brownies are completely cool before frosting to prevent melting the marshmallow frosting.
- You can substitute instant coffee granules with espresso powder to enhance chocolate flavor even more.
- Use parchment paper with an overhang on two sides for easy brownie removal from the pan.
- Store frosted brownies in an airtight container at room temperature for up to 3 days or refrigerate for longer freshness.
Nutrition
- Serving Size: 1 brownie (approx. 2×2 inch piece)
- Calories: 280
- Sugar: 28g
- Sodium: 110mg
- Fat: 16g
- Saturated Fat: 9g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 34g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 55mg


Your email address will not be published. Required fields are marked *