Ingredients
Brownie Base
- 1/2 cup (1 stick) unsalted butter
- 1 cup granulated sugar
- 2 large eggs
- 1 tsp vanilla extract
- 1/3 cup unsweetened cocoa powder
- 1/2 cup all-purpose flour
- 1/4 tsp salt
Chocolate Mousse
- 6 oz bittersweet chocolate, chopped
- 1 cup heavy cream
- 2 tbsp powdered sugar
Whipped Cream Layer
- 1 cup heavy whipping cream
- 2 tbsp powdered sugar
- 1/2 tsp vanilla extract
Ganache Topping
- 1/2 cup heavy cream
- 4 oz semi-sweet chocolate, chopped
Garnish
- Cocoa powder for dusting
- Chocolate shavings or curls
Instructions
- Make the Brownie Base: Preheat your oven to 350°F (175°C). Line an 8×8 inch baking pan with parchment paper for easy removal. Melt the unsalted butter in a microwave-safe bowl or on the stovetop, then stir in the granulated sugar until combined. Beat in the eggs one at a time, followed by the vanilla extract.
- Mix Dry Ingredients: Sift together the unsweetened cocoa powder, all-purpose flour, and salt. Gradually mix this into the wet ingredients until just combined, taking care not to overmix to keep the brownies tender.
- Bake the Brownie Base: Pour the batter into the prepared pan, smoothing the top evenly. Bake in the preheated oven for 20-25 minutes or until a toothpick inserted near the center comes out with moist crumbs. Remove from the oven and allow to cool completely in the pan.
- Prepare the Chocolate Mousse: Gently melt the bittersweet chocolate, either in a microwave using short bursts or over a double boiler, then let it cool slightly to avoid curdling the cream. In a chilled bowl, whip the 1 cup heavy cream with 2 tablespoons powdered sugar until stiff peaks form. Carefully fold the cooled melted chocolate into the whipped cream until fully incorporated without deflating the mixture.
- Assemble Mousse Layer: Spread the chocolate mousse evenly over the cooled brownie base. Smooth the surface and place the pan in the refrigerator to chill and set for at least 1 hour.
- Add the Whipped Cream Layer: In a clean bowl, whip 1 cup heavy whipping cream with 2 tablespoons powdered sugar and 1/2 teaspoon vanilla extract until soft peaks form. Spread this light whipped cream layer over the chilled chocolate mousse. Return to the refrigerator to chill while you prepare the ganache.
- Make the Ganache Topping: Heat the 1/2 cup heavy cream in a small saucepan over medium heat until steaming but not boiling. Pour the hot cream over the chopped semi-sweet chocolate and let sit for 2 minutes to soften. Stir gently until the ganache is smooth and glossy. Allow it to cool slightly so it thickens but remains pourable.
- Top with Ganache: Pour the cooled ganache evenly over the whipped cream layer. Smooth the top carefully and return the dessert to the refrigerator to chill and fully set for about 2 hours.
- Garnish and Serve: Once set, dust the top with cocoa powder using a fine sieve, and decorate with chocolate shavings or curls for an elegant finish. When ready to serve, slice the mousse brownies using a warm knife to ensure clean and distinct layers.
Notes
- For best results, chill the bowls and beaters before whipping cream to achieve stiff peaks more easily.
- Use high-quality chocolate for the mousse and ganache layers to enhance the depth of flavor.
- Allow the brownies to fully cool before adding mousse to prevent melting or separation.
- A warm knife can be heated by dipping in hot water and wiping dry before slicing for neat layers.
- This dessert can be prepared a day in advance and kept refrigerated.
- Prep Time: 30 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American