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Home Desserts & Baking Desserts Heavenly Chocolate Mousse Brownie Cake (Fudgy & Dreamy!)
Desserts

Heavenly Chocolate Mousse Brownie Cake (Fudgy & Dreamy!)

Chef Serge holding a rolling pinChef SergeOctober 16, 20255 Mins read515
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Slice of Chocolate Mousse Brownie Cake showing mousse and brownie layers
Fudgy brownie base topped with airy chocolate mousse and curls of chocolate.
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When you’re in the mood for something rich, decadent, and utterly dreamy, there’s nothing quite like a slice of Chocolate Mousse Brownie Cake. This irresistible dessert combines the fudgy goodness of brownies with a light, airy chocolate mousse topping that melts in your mouth. Perfect for special occasions or a cozy night in, this cake is sure to impress anyone lucky enough to dig in.

Recipe Guide:

    • What is Chocolate Mousse Brownie Cake?
    • Why You’ll Love This
    • How to Make
    • Ingredients
    • Instructions
    • What to Serve with Chocolate Mousse Brownie Cake
    • Top Tips for Perfecting Chocolate Mousse Brownie Cake
    • Storing and Reheating Tips
    • FAQs
    • u003cstrongu003eQ: Can I use milk chocolate instead of semisweet chocolate?u003c/strongu003e
    • u003cstrongu003eQ: What can I substitute for heavy cream?u003c/strongu003e
    • u003cstrongu003eQ: How do I know when the brownie layer is done?u003c/strongu003e
  • More Resources
  • Chocolate Mousse Brownie Cake
    • Ingredients  
    • Method 
    • Notes

What is Chocolate Mousse Brownie Cake?

Chocolate Mousse Brownie Cake merges two beloved treats into one show-stopping dessert. Originating from the classic French chocolate mousse and American brownie recipes, this indulgent creation surprises your palate with layers of texture and flavor. It starts with a dense, chewy brownie base that forms the ideal canvas for a silky chocolate mousse on top. The juxtaposition of rich chocolate and fluffy mousse creates a delightful experience, making every bite a harmonious blend of chocolate bliss.

Why You’ll Love This

What’s not to love about this Chocolate Mousse Brownie Cake? It’s a straightforward recipe you can whip up in under an hour, making it perfect for beginners and seasoned bakers alike. Not to mention, all the ingredients are budget-friendly and often found in your pantry. The combination of textures—from the fudgy brownie to the airy mousse—will leave you and your guests craving more. Whether you’re serving it at a birthday party, holiday gathering, or just for a sweet treat on a Tuesday evening, this cake will always steal the show.

How to Make

Quick Overview

Creating your Chocolate Mousse Brownie Cake is a breeze! You’ll need a microwave, a mixing bowl, a whisk, and a 9-inch springform pan. In about 30 minutes of hands-on time and a bit of waiting for cooling and chilling, you’ll have a stunning cake ready to impress.

Ingredients for Chocolate Mousse Brownie Cake arranged on a countertop

Ingredients

. 8 tablespoons (120 grams) unsalted butter
. 1 cup (200 grams) granulated sugar
. 3/4 cup (84 grams) cocoa powder
. 1/2 teaspoon salt
. 1 teaspoon vanilla extract
. 2 large eggs
. 1/2 cup (60 grams) all-purpose flour
. 2 large eggs (for mousse)
. 1/4 cup (50 grams) granulated sugar (for mousse)
. 2 cups (480 mL) cold heavy whipping cream
. 1 teaspoon vanilla extract (for mousse)
. 6 ounces chopped semisweet chocolate (about 1 cup)

Instructions

  1. Preheat your oven to 325°F (160°C) and lightly grease a 9-inch round springform pan with cooking spray.
  2. In a microwave-safe bowl, combine the diced butter, sugar, and cocoa powder. Microwave on HIGH for 30 seconds, then stir and microwave again for another 30 seconds.
  3. Once melted, stir in the salt and vanilla extract. Add the two large eggs, mixing until smooth. Then, sprinkle the flour on top and stir vigorously for about 50 strokes until fully combined.
  4. Pour the brownie batter into the prepared springform pan and bake for 29-32 minutes. Let it cool completely before proceeding to the mousse layer.
  5. To prepare the mousse, beat the two large eggs with the 1/4 cup of sugar in a bowl for 2-3 minutes, or until the mixture is pale yellow.
  6. Gradually pour half of the cold heavy cream into the egg mixture. Cook on medium heat while stirring until it starts to thicken (do not allow it to boil).
  7. Remove from heat, add the chopped chocolate, and cover the bowl. Let it sit for 1 minute, then whisk until smooth. Chill this mixture in the refrigerator for about an hour.
  8. In another bowl, beat the remaining heavy cream until soft peaks form. Gently fold in the chilled chocolate mixture until just combined.
  9. Pour the mousse over the cooled brownie in the springform pan, spreading it evenly. Refrigerate for at least one hour before serving.
  10. When ready, release the springform pan and slice the cake to reveal the beautiful layers.

What to Serve with Chocolate Mousse Brownie Cake

Slice of Chocolate Mousse Brownie Cake served with chocolate drizzle and raspberries

Pair your Chocolate Mousse Brownie Cake with a scoop of vanilla ice cream or a dollop of whipped cream for an extra touch of sweetness. A light, refreshing salad or fresh berries can also balance the rich flavors nicely. For a drink, a nice cup of coffee or a glass of dessert wine works beautifully, enhancing the chocolate notes of the cake.

Top Tips for Perfecting Chocolate Mousse Brownie Cake

  1. Use Quality Chocolate: The better the chocolate, the richer your mousse will taste.
  2. Don’t Overbake the Brownies: Aim for a slightly fudgy texture for the best contrast with the mousse.
  3. Room Temperature Ingredients: Let your eggs sit at room temperature for a seamless mix.
  4. Cool Completely: Ensure the brownie layer is fully cooled to prevent the mousse from melting.
  5. Gently Fold Mousse: When combining the whipped cream with the chocolate mixture, be gentle to keep the airiness.
  6. Chill Thoroughly: Give the mousse ample time to set for the best flavor and texture.
  7. Decorate with Garnishes: Top with chocolate shavings, fresh berries, or mint for a visual appeal.

Storing and Reheating Tips

Store any leftovers in the refrigerator, covered, for up to 3-4 days. Chocolate Mousse Brownie Cake is best enjoyed chilled, so there’s no need to reheat it. If you want to enjoy it later, you can also freeze slices wrapped in plastic wrap and aluminum foil for up to 2 months. Just thaw in the refrigerator when you’re ready to indulge again.

FAQs

u003cstrongu003eQ: Can I use milk chocolate instead of semisweet chocolate?u003c/strongu003e

A: Absolutely! Milk chocolate will give the mousse a creamier flavor, but keep in mind that it will be sweeter.

u003cstrongu003eQ: What can I substitute for heavy cream?u003c/strongu003e

A: You can use coconut cream or a dairy-free whipping cream alternative, but the texture and flavor may vary.

u003cstrongu003eQ: How do I know when the brownie layer is done?u003c/strongu003e

A: Insert a toothpick into the center; it should come out with a few moist crumbs but not wet batter.

There you have it! The Chocolate Mousse Brownie Cake is not just a dessert, but a delightful experience that brings sweetness to any occasion. The process is simple, and the outcome is spectacular, making it a must-try for your next gathering or a special weekend treat. Don’t wait—indulge in this heavenly dessert soon!


More Resources

  • Chewy Fudgy Frosted Brownies
  • Irresistible Bourbon Pecan Fudge Brownies (Rich & Fudgy Bliss)
  • Pecan Pie Brownies
  • Brown Sugar Pecan Pie Brownies
  • Triple Chocolate Chip Crinkle Cookies
  • Best Chocolate Chip Cookie Recipe Ever
  • Chocolate Mousse – Wikipedia
  • Health Benefits of Dark Chocolate – Harvard Health
  • Cocoa Powder Nutrition Facts – USDA FoodData Central
  • Healthy Baking Tips – Cleveland Clinic

Chocolate Mousse Brownie Cake

A rich and decadent dessert that combines fudgy brownies with a light chocolate mousse topping, perfect for any occasion.
Print Recipe Pin Recipe
Prep Time 30 minutes mins
Cook Time 30 minutes mins
Total Time 1 hour hr
Servings: 8 servings
Course: Cake, Dessert
Cuisine: American, French
Calories: 350
Ingredients Method Notes

Ingredients
  

Brownie Base
  • 8 tablespoons unsalted butter Diced
  • 1 cup granulated sugar
  • 3/4 cup cocoa powder
  • 1/2 teaspoon salt
  • 1 teaspoon vanilla extract
  • 2 large eggs
  • 1/2 cup all-purpose flour
Chocolate Mousse
  • 2 large eggs
  • 1/4 cup granulated sugar
  • 2 cups cold heavy whipping cream
  • 1 teaspoon vanilla extract
  • 6 ounces chopped semisweet chocolate (about 1 cup)

Method
 

Preparation
  1. Preheat your oven to 325°F (160°C) and lightly grease a 9-inch round springform pan with cooking spray.
  2. In a microwave-safe bowl, combine the diced butter, sugar, and cocoa powder. Microwave on HIGH for 30 seconds, then stir and microwave again for another 30 seconds.
  3. Once melted, stir in the salt and vanilla extract. Add the two large eggs, mixing until smooth. Then, sprinkle the flour on top and stir vigorously for about 50 strokes until fully combined.
  4. Pour the brownie batter into the prepared springform pan and bake for 29-32 minutes. Let it cool completely before proceeding to the mousse layer.
Mousse Preparation
  1. To prepare the mousse, beat the two large eggs with the 1/4 cup of sugar in a bowl for 2-3 minutes, or until the mixture is pale yellow.
  2. Gradually pour half of the cold heavy cream into the egg mixture. Cook on medium heat while stirring until it starts to thicken (do not allow it to boil).
  3. Remove from heat, add the chopped chocolate, and cover the bowl. Let it sit for 1 minute, then whisk until smooth. Chill this mixture in the refrigerator for about an hour.
  4. In another bowl, beat the remaining heavy cream until soft peaks form. Gently fold in the chilled chocolate mixture until just combined.
  5. Pour the mousse over the cooled brownie in the springform pan, spreading it evenly. Refrigerate for at least one hour before serving.
  6. When ready, release the springform pan and slice the cake to reveal the beautiful layers.

Notes

Pair with vanilla ice cream or whipped cream. Best enjoyed chilled. Store leftovers in the refrigerator for up to 3-4 days or freeze wrapped for up to 2 months.
  • Brownie Dessert
  • Chocolate Cake
  • Chocolate Lovers
  • Gourmet Cakes
  • Mousse Recipe
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Written by
Chef Serge

Chef Serge is the founder of SmartCookRecipes.com, where he shares easy, family-inspired recipes made with love. He believes food connects people and every meal tells a story.

Freshly baked Pecan Pie Brownies with glossy pecan topping Previous post Pecan Pie Brownies (Fudgy, Gooey & Perfectly Sweet!)
Close-up of Bourbon Pecan Fudge Brownies with pecans and chocolate chunks Next post Irresistible Bourbon Pecan Fudge Brownies (Rich & Fudgy Bliss!)

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