Chocolate Mousse Brownies are the ultimate dessert for chocolate lovers. This indulgent treat features a dense, chewy fudge brownie base that is expertly topped with a thick layer of light, airy chocolate mousse and finished with a silky ganache. The combination creates a stunning triple-layer dessert that’s sure to impress. Perfect for parties or a cozy night in, these brownies are a true delight.
Why You’ll Love This Chocolate Mousse Brownies
There are countless reasons to adore Chocolate Mousse Brownies. First, the rich chocolate flavor is a dream for any chocolate lover. These fudgy chocolate mousse brownies are incredibly satisfying, giving you that perfect melt-in-your-mouth experience. The combination of textures from the chewy brownie base and the creamy mousse is nothing short of heavenly. Additionally, they are easy chocolate mousse brownies from scratch, making them a perfect choice for novice bakers. This decadent chocolate mousse brownies recipe is also perfect for parties, ensuring your guests will rave about your baking skills. Lastly, with a prep time of just 60 minutes and a total time of 235 minutes, you can whip these up and have them ready for any occasion.

Ingredients for Chocolate Mousse Brownies
Gather these items:
- 1/2 cup unsalted butter (Melted)
- 1 cup granulated sugar (For brownie)
- 2 large eggs (Room temperature)
- 1 tsp vanilla extract (Divided use)
- 1/3 cup unsweetened cocoa powder (Dutch process)
- 1/2 cup all-purpose flour (Sifted)
- 1/4 tsp salt (Balances flavor)
- 1 1/2 cups heavy whipping cream (Cold, for mousse)
- 1 cup semi-sweet chocolate chips (Melted and cooled for mousse)
- 1/4 cup powdered sugar (For mousse)
- 1/2 cup chocolate chips (For ganache)
- 1/4 cup heavy cream (Hot, for ganache)
- 2 tbsp chocolate shavings (Garnish)
How to Make Chocolate Mousse Brownies Step-by-Step
- Step 1: Preheat oven to 350°F and line an 8×8 inch pan with parchment paper.
- Step 2: Whisk melted butter, sugar, eggs, and vanilla; stir in cocoa, flour, and salt.
- Step 3: Bake for 20–25 minutes; let cool completely in the pan.
- Step 4: Whip heavy cream and powdered sugar to stiff peaks; fold in cooled melted chocolate.
- Step 5: Spread mousse over cooled brownies and refrigerate for 30 minutes.
- Step 6: Pour hot cream over chocolate to make ganache; spread over mousse and chill for 3 hours.
- Step 7: Top with chocolate shavings, slice with a hot knife, and serve.
Pro Tips for the Best Chocolate Mousse Brownies
Keep these in mind:
- Use room temperature eggs for better mixing.
- Let the brownies cool completely before adding the mousse for the best texture.
- For a gluten-free chocolate mousse brownies option, substitute the all-purpose flour with a gluten-free blend.
- Ensure your heavy cream is cold for perfect whipping.
- For an extra treat, add nuts to the brownie mix for a crunchy texture.

Best Ways to Serve Chocolate Mousse Brownies
These brownies are delicious on their own, but there are fun ways to elevate your dessert:
- Serve with a scoop of vanilla ice cream for a delightful contrast.
- Top with fresh berries for added freshness and color.
- Pair with a rich chocolate sauce or caramel drizzle for an indulgent treat.
How to Store and Reheat Chocolate Mousse Brownies
To store your Chocolate Mousse Brownies, place them in an airtight container in the fridge. They can last up to a week. To reheat, simply microwave for a few seconds until warmed through. This is ideal if you are preparing a rich chocolate mousse brownie dessert ahead of time for guests.
Frequently Asked Questions About Chocolate Mousse Brownies
What’s the secret to perfect Chocolate Mousse Brownies?
The secret lies in using quality chocolate and ensuring each layer is set properly. The balance between the fudgy brownie base and the creamy mousse is essential for that luxurious texture.
Can I make Chocolate Mousse Brownies ahead of time?
Absolutely! These brownies can be made a day in advance. Just store them in the fridge after the ganache layer has set for the best flavor and texture.
How do I avoid common mistakes with Chocolate Mousse Brownies?
Make sure to measure your ingredients accurately and avoid overmixing the brownie batter. Also, ensure your heavy cream is cold for the mousse to whip properly.
Variations of Chocolate Mousse Brownies You Can Try
If you’re looking to mix things up, consider these variations:
- Make a chocolate brownie mousse cake by layering brownies and mousse in a springform pan.
- Add nuts such as walnuts or pecans for a crunchy contrast in your brownies.
- Try a peppermint twist by adding peppermint extract to the mousse for a festive touch.
- For an even richer flavor, use dark chocolate instead of semi-sweet chocolate chips.
For more delicious dessert ideas, check out our incredible Chocolate Oreo Cheesecake or try making Apple Bundt Cake for a fruity twist. If you’re in the mood for something savory, our Creamy Pepperoncini Chicken Skillet is a must-try!
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Chocolate Mousse Brownies: 7 Layers of Pure Indulgence
- Total Time: 235 minutes
- Yield: 16 servings 1x
- Diet: Vegetarian
Description
These indulgent Chocolate Mousse Brownies feature a dense, chewy fudge brownie base topped with a thick layer of light, airy chocolate mousse and a silky ganache finish. A stunning triple-layer dessert.
Ingredients
- 1/2 cup unsalted butter (Melted)
- 1 cup granulated sugar (For brownie)
- 2 large eggs (Room temperature)
- 1 tsp vanilla extract (Divided use)
- 1/3 cup unsweetened cocoa powder (Dutch process)
- 1/2 cup all-purpose flour (Sifted)
- 1/4 tsp salt (Balances flavor)
- 1 1/2 cups heavy whipping cream (Cold, for mousse)
- 1 cup semi-sweet chocolate chips (Melted and cooled for mousse)
- 1/4 cup powdered sugar (For mousse)
- 1/2 cup chocolate chips (For ganache)
- 1/4 cup heavy cream (Hot, for ganache)
- 2 tbsp chocolate shavings (Garnish)
Instructions
- Preheat oven to 350°F and line an 8×8 inch pan with parchment paper.
- Whisk melted butter, sugar, eggs, and vanilla; stir in cocoa, flour, and salt.
- Bake for 20–25 minutes; let cool completely in the pan.
- Whip heavy cream and powdered sugar to stiff peaks; fold in cooled melted chocolate.
- Spread mousse over cooled brownies and refrigerate for 30 minutes.
- Pour hot cream over chocolate to make ganache; spread over mousse and chill for 3 hours.
- Top with chocolate shavings, slice with a hot knife, and serve.
Notes
- Prep Time: 60 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie
- Calories: 420
- Sugar: 30 g
- Sodium: 150 mg
- Fat: 29 g
- Saturated Fat: 17 g
- Unsaturated Fat: 12 g
- Trans Fat: 0 g
- Carbohydrates: 40 g
- Fiber: 2 g
- Protein: 5 g
- Cholesterol: 90 mg
