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Decadent chocolate mousse brownies served on a dessert platter

Chocolate Mousse Brownies

These Chocolate Mousse Brownies are a heavenly blend of rich, fudgy brownie layers topped with a luscious chocolate mousse, creating the perfect balance of intense chocolate flavor and airy texture.
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 45 minutes
Servings: 16 pieces
Course: Dessert
Cuisine: American
Calories: 250
Ingredients Method Notes

Ingredients
  

For the Brownies
  • 1 cup unsweetened cocoa powder Use a high-quality cocoa for best flavor.
  • 1 cup granulated sugar
  • 1/2 cup butter, melted Can substitute with coconut oil for a dairy-free option.
  • 4 large eggs
  • 1 teaspoon vanilla extract
  • 1/2 cup all-purpose flour Can be substituted with a gluten-free baking mix.
  • 1/4 teaspoon salt
For the Mousse
  • 1 cup heavy cream Can replace with coconut cream for a vegan version.
  • 1 cup semi-sweet chocolate chips Dark chocolate chips can also be used.
  • 1/2 cup powdered sugar

Method
 

Preparation
  1. Preheat your oven to 350°F (175°C) and grease a 9×9 inch baking pan.
  2. In a large bowl, whisk together cocoa powder, granulated sugar, and melted butter until smooth.
  3. Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
  4. Gently fold in the flour and salt until just combined—avoid overmixing.
  5. Pour the batter into the prepared pan and spread it evenly. Bake for 20-25 minutes or until a toothpick comes out with moist crumbs. Allow to cool completely.
Mousse Preparation
  1. Melt the chocolate chips over a double boiler and let cool slightly.
  2. In a separate bowl, whip the heavy cream and powdered sugar until soft peaks form. Fold in the melted chocolate until combined.
  3. Spread the mousse evenly over the cooled brownies and chill in the refrigerator until set.
Serving
  1. Once set, cut into squares and enjoy. Optionally, dust the top with powdered sugar, grated chocolate, or fresh berries.

Notes

Store leftovers tightly covered in plastic wrap or in an airtight container. They can last for up to 3 days at room temperature or a week in the refrigerator. For longer storage, freeze individually wrapped brownies for up to 3 months.