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Chocolate Mousse Brownies: Creamy Layers With Decadent Flavor

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Chocolate Mousse Brownies are a luxurious layered dessert with a rich, fudgy brownie base topped by a silky, airy chocolate mousse. Perfect for when you’re craving something elegant, chocolatey, and indulgent.

  • Author: Ella
  • Prep Time: 20 minutes
  • Cook Time: 25 minutes
  • Total Time: 3 hours
  • Yield: 9 to 12 bars
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

  • 1/2 cup unsalted butter
  • 6 oz semi-sweet chocolate (chopped or chips)
  • 3/4 cup granulated sugar
  • 2 large eggs
  • 1 tsp vanilla extract
  • 1/2 cup all-purpose flour
  • 1/4 tsp salt
  • 1 cup heavy whipping cream
  • 6 oz semi-sweet or dark chocolate (melted and cooled)
  • 1/4 cup powdered sugar
  • 1 tsp vanilla extract (for mousse)

Instructions

  1. Preheat oven to 350°F (175°C) and line an 8×8-inch baking pan with parchment paper.
  2. Melt butter and chocolate in a saucepan over low heat, stirring until smooth. Remove from heat and cool slightly.
  3. Whisk in granulated sugar, then eggs one at a time, followed by vanilla extract.
  4. Stir in flour and salt until just combined. Pour batter into prepared pan and smooth the top.
  5. Bake for 22–25 minutes until the center is set and a toothpick comes out with moist crumbs. Cool completely in the pan.
  6. In a bowl, whip heavy cream with powdered sugar and vanilla until soft peaks form.
  7. Gently fold in cooled melted chocolate to create a light, airy mousse.
  8. Spread mousse evenly over the cooled brownie layer. Refrigerate at least 2 hours until set.
  9. Slice and serve chilled. Wipe the knife between cuts for clean edges.

Notes

  • Add nuts or espresso for a flavor and texture twist.
  • Use high-quality chocolate for best results in the mousse.
  • Fresh raspberries or raspberry jam can be layered between brownie and mousse.
  • Boxed brownie mix can be used to save time.
  • Freeze without affecting texture—thaw in fridge before serving.

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