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Decadent Chocolate Mousse Brownies topped with rich chocolate mousse layer.

Chocolate Mousse Brownies

Indulge in a decadent blend of rich chocolate mousse and fudgy brownies that create an irresistible treat perfect for any occasion.
Prep Time 30 minutes
Cook Time 30 minutes
Total Time 4 hours
Course Dessert
Cuisine American
Servings 16 servings
Calories 350 kcal

Ingredients
  

Brownie Base

  • 1 cup unsalted butter Melted
  • 2 cups granulated sugar
  • 4 large eggs Added one at a time
  • 1 teaspoon vanilla extract
  • 1 cup all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1/4 teaspoon salt

Chocolate Mousse

  • 1 cup heavy whipping cream Whipped to soft peaks
  • 8 ounces semi-sweet chocolate, chopped Melted
  • 1/2 cup powdered sugar Added gradually to whipped cream

Instructions
 

Preparation

  • Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking pan.
  • In a large bowl, melt the butter and stir in the granulated sugar until combined.
  • Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
  • Gradually add in the flour, cocoa powder, and salt, mixing until just combined.
  • Pour the brownie batter into the prepared baking pan and spread it evenly.

Baking

  • Bake in the preheated oven for 25-30 minutes, or until a toothpick comes out clean. Allow to cool completely.

Mousse Preparation

  • Melt the chocolate in a double boiler or microwave and let it cool slightly.
  • In a separate bowl, whip the heavy cream until soft peaks form, gradually adding powdered sugar.
  • Fold the melted chocolate into the whipped cream gently.

Assembly

  • Spread the mousse over the cooled brownie base and refrigerate until set, about 2-3 hours.
  • Cut into squares and serve, optionally topping with additional whipped cream or chocolate ganache.

Notes

Keep brownies stored in the refrigerator for freshness. They can last up to a week. For longer storage, freeze individually wrapped squares for up to three months.
Keyword brownies, Chocolate Dessert, Chocolate Mousse Brownies, Holiday Treat, Mousse Dessert