Chocolate Brownie Mousse Cake is a delightful treat that never fails to impress. This scrumptious dessert features layers of rich chocolate brownie and velvety mousse, creating a symphony of flavors that are perfect for any occasion. Whether it’s a birthday, anniversary, or simply an indulgent night in, this cake is a showstopper that will leave everyone wanting more. Let’s dive into this decadent brownie mousse cake recipe!
Why You’ll Love This Chocolate Brownie Mousse Cake
This Chocolate Brownie Mousse Cake is a true crowd-pleaser, and here are a few reasons why:
- It combines two beloved desserts: brownies and mousse.
- The texture is heavenly, featuring fudgy layers and creamy mousse.
- This cake is perfect for special occasions, making it a great centerpiece.
- It can easily be customized with flavors like coffee or mint.
- It offers a rich chocolate flavor that satisfies any sweet tooth.
- It’s an easy chocolate brownie mousse cake recipe that anyone can follow.
This dessert is not just delicious; it’s also a gluten-free chocolate brownie mousse cake option, making it suitable for various dietary needs. Perfect for gatherings, this cake elevates any celebration with its luxurious taste!
Ingredients for Chocolate Brownie Mousse Cake
Gather these items:
- 1 cup all-purpose flour
- 1 cup sugar
- 1/2 cup unsweetened cocoa powder
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 egg
- 1/2 cup whole milk
- 1/4 cup vegetable oil
- 1 teaspoon vanilla extract
- 1/2 cup boiling water
- 1 1/2 cups heavy cream
- 1 cup semi-sweet chocolate chips
- 2 tablespoons sugar
- 1 teaspoon vanilla extract
How to Make Chocolate Brownie Mousse Cake Step-by-Step
- Step 1: Preheat your oven to 350°F (175°C). Grease and flour an 8-inch cake pan.
- Step 2: In a large bowl, whisk together the flour, sugar, cocoa powder, baking powder, baking soda, and salt.
- Step 3: Add the egg, milk, oil, and vanilla extract; beat until well combined.
- Step 4: Stir in the boiling water until the mixture is smooth. The batter will be thin.
- Step 5: Pour the batter into the prepared cake pan and bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
- Step 6: Allow the cake to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
- Step 7: In a microwave-safe bowl, combine the chocolate chips and 1/4 cup of heavy cream. Microwave in 30-second intervals, stirring in between, until melted and smooth.
- Step 8: In a separate bowl, beat the remaining heavy cream with sugar and vanilla extract until stiff peaks form.
- Step 9: Fold the melted chocolate into the whipped cream until no streaks remain.
- Step 10: Refrigerate until set, about 1 hour.
- Step 11: Slice the cooled cake horizontally into two layers.
- Step 12: Place the bottom layer on a serving plate and spread half of the chocolate mousse over the top.
- Step 13: Place the second layer of cake on top and spread the remaining mousse over the top and sides of the cake.

Pro Tips for the Perfect Chocolate Brownie Mousse Cake
Keep these in mind for the best results:
- Always use high-quality chocolate for the mousse to enhance the flavor.
- Let the cake cool completely before slicing to prevent the mousse from melting.
- For a more intense chocolate flavor, consider adding espresso powder to the brownie batter.
Best Ways to Serve Chocolate Brownie Mousse Cake
This delightful cake can be served with:
- A drizzle of chocolate ganache for an extra layer of richness.
- Fresh berries for a pop of color and tartness.
- Whipped cream to complement the creamy texture of the mousse.
How to Store and Reheat Chocolate Brownie Mousse Cake
To store your cake, keep it covered in the refrigerator for up to 3 days. If you have any leftovers, they make a wonderful chocolate dessert with brownie and mousse. Reheat individual slices in the microwave for a few seconds if desired.
Frequently Asked Questions About Chocolate Brownie Mousse Cake
What’s the secret to perfect Chocolate Brownie Mousse Cake?
The key is to ensure both the brownie and mousse are perfectly set before assembling. A fudgy brownie base pairs beautifully with a rich chocolate mousse, making each bite indulgent.
Can I make Chocolate Brownie Mousse Cake ahead of time?
Absolutely! This cake can be made a day in advance, allowing the flavors to meld beautifully. Just store it in the fridge until you are ready to serve.
How do I avoid common mistakes with Chocolate Brownie Mousse Cake?
To avoid common pitfalls, make sure to measure ingredients accurately and allow the cake to cool completely before frosting it with mousse. This prevents melting and ensures a beautiful presentation.
Variations of Chocolate Brownie Mousse Cake You Can Try
Feel free to experiment with these delicious variations:
- Try adding flavored extracts like mint or orange to the mousse.
- Use a gluten-free flour blend for a gluten-free chocolate brownie mousse cake.
- Incorporate nuts into the brownie layer for added texture.

For more tips on baking, check out this guide on baking techniques. If you’re interested in gluten-free options, visit this resource for more recipes. Additionally, learn about the benefits of using high-quality chocolate in desserts at this article.
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Delicious Chocolate Brownie Mousse Cake Recipe
- Total Time: 1 hour 55 minutes
- Yield: 8 servings 1x
- Diet: Vegetarian
Description
This delicious chocolate cake layered with rich chocolate mousse is perfect for any celebration!
Ingredients
- 1 cup all-purpose flour
- 1 cup sugar
- 1/2 cup unsweetened cocoa powder
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 egg
- 1/2 cup whole milk
- 1/4 cup vegetable oil
- 1 teaspoon vanilla extract
- 1/2 cup boiling water
- 1 1/2 cups heavy cream
- 1 cup semi-sweet chocolate chips
- 2 tablespoons sugar
- 1 teaspoon vanilla extract
Instructions
- Preheat your oven to 350°F (175°C). Grease and flour an 8-inch cake pan.
- In a large bowl, whisk together the flour, sugar, cocoa powder, baking powder, baking soda, and salt.
- Add the egg, milk, oil, and vanilla extract; beat until well combined.
- Stir in the boiling water until the mixture is smooth. The batter will be thin.
- Pour the batter into the prepared cake pan and bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
- Allow the cake to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
- In a microwave-safe bowl, combine the chocolate chips and 1/4 cup of heavy cream. Microwave in 30-second intervals, stirring in between, until melted and smooth.
- In a separate bowl, beat the remaining heavy cream with sugar and vanilla extract until stiff peaks form.
- Fold the melted chocolate into the whipped cream until no streaks remain.
- Refrigerate until set, about 1 hour.
- Slice the cooled cake horizontally into two layers.
- Place the bottom layer on a serving plate and spread half of the chocolate mousse over the top.
- Place the second layer of cake on top and spread the remaining mousse over the top and sides of the cake.
Notes
- Prep Time: 25 minutes
- Cook Time: 30-35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 350
- Sugar: 25g
- Sodium: 200mg
- Fat: 18g
- Saturated Fat: 10g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 45g
- Fiber: 2g
- Protein: 5g
- Cholesterol: 40mg
Keywords: Chocolate Brownie Mousse Cake