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Decadent Chocolate Mousse Brownies Today Recipe

4.7 from 93 reviews

Indulge in these decadent Chocolate Mousse Brownies, combining a rich, fudgy brownie base with a smooth, airy chocolate mousse topping and finished with a glossy chocolate ganache. Perfect for chocolate lovers seeking an elegant dessert that balances deep chocolate flavors with creamy textures.

Ingredients

Scale

Brownies

  • 1 cup granulated sugar
  • 1/2 cup unsalted butter, melted
  • 1/3 cup cocoa powder (preferably Dutch-processed)
  • 1/2 cup all-purpose flour
  • 1/4 teaspoon baking powder
  • 1/4 teaspoon kosher salt
  • 1 teaspoon vanilla extract
  • 2 large eggs, room temperature

Mousse

  • 6 ounces semisweet chocolate, chopped
  • 1/4 cup whole milk
  • 1 cup heavy whipping cream, cold
  • 1/4 cup powdered sugar

Ganache Topping

  • 1/2 cup heavy cream
  • 4 ounces chopped semisweet chocolate

Instructions

  1. Preheat Oven: Preheat your oven to 350°F (175°C) ensuring it reaches the right temperature for baking the brownies evenly.
  2. Mix Brownie Batter: In a large mixing bowl, combine melted butter and granulated sugar until well blended. Add the eggs and vanilla extract, whisking until smooth and fully combined.
  3. Add Dry Ingredients: Fold in the cocoa powder, all-purpose flour, baking powder, and salt gently until just combined. Avoid overmixing to keep brownies tender.
  4. Bake Brownies: Pour the thick batter into a lined 8×8-inch baking pan and smooth the top. Bake for about 20 minutes or until a toothpick inserted comes out with a few moist crumbs, indicating fudgy texture.
  5. Cool Brownies: Remove from oven and let the brownies cool completely on a wire rack to prepare for mousse layering.
  6. Prepare Chocolate Mousse: Chop the semisweet chocolate and place it in a bowl. Heat the milk until steaming hot and pour it over the chocolate. Let it sit for a minute, then stir until the mixture is smooth and glossy.
  7. Whip Cream: In a separate bowl, whip the cold heavy cream with powdered sugar until soft peaks form, creating a light and airy texture.
  8. Fold Mousse: Gently fold the whipped cream into the cooled chocolate mixture until no streaks remain, taking care not to deflate the mousse.
  9. Assemble Layers: Spread the chocolate mousse evenly over the cooled brownie base, then refrigerate for at least 2 hours to allow the mousse to set firmly.
  10. Make Ganache: Heat the heavy cream until hot and pour it over the chopped chocolate for the ganache. Let it sit for a few minutes, then stir until glossy and smooth.
  11. Add Ganache Topping: Pour the ganache over the set mousse layer, smoothing with a spatula if needed. Refrigerate for an additional hour to set completely.
  12. Serve: Slice the brownies using a warm knife for clean edges. Serve chilled, optionally garnished with whipped cream or fresh berries for extra indulgence.

Notes

  • Use room temperature eggs for better mixing and a smoother batter.
  • Ensure the oven is fully preheated before baking for even cooking.
  • For gluten-free options, substitute all-purpose flour with a 1:1 gluten-free flour blend.
  • Chill the heavy cream before whipping to achieve optimal volume in the mousse.
  • Use high-quality semisweet chocolate for both mousse and ganache to maximize flavor.
  • Slicing brownies with a warm knife helps achieve clean, professional-looking edges.
  • Refrigeration times are critical for mousse and ganache setting – do not skip or shorten.
  • Optional garnishes include whipped cream, cocoa powder, or fresh berries to enhance presentation.

Keywords: chocolate mousse brownies, decadent brownies, chocolate dessert, mousse topping, ganache, fudgy brownies, elegant chocolate dessert