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Chocolate Mousse Brownies

Decadent chocolate mousse brownies 🍫 — fudgy base topped with creamy, airy mousse for the ultimate chocolate dessert.
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Prep Time 20 minutes
Cook Time 30 minutes
Total Time 1 hour 20 minutes
Servings: 9 servings
Course: Dessert, Snack
Cuisine: American, Baking
Calories: 320
Ingredients Equipment Method Notes

Ingredients
  

Brownie Base
  • 1 cup unsalted butter melted
  • 1 cup granulated sugar
  • 0.75 cup cocoa powder
  • 4 large eggs
  • 1 tsp vanilla extract
  • 0.5 tsp salt
  • 1 cup all-purpose flour
  • 0.5 cup chocolate chips optional
Chocolate Mousse
  • 1 cup heavy cream
  • 0.5 cup semisweet chocolate chips
  • 1 tsp vanilla extract
  • 2 tbsp powdered sugar

Equipment

  • Mixing bowls
  • Whisk or electric mixer
  • 8x8-inch baking pan
  • Spatula
  • Parchment paper

Method
 

  1. Preheat oven to 350°F (175°C) and line an 8x8-inch pan with parchment paper.
  2. Mix melted butter, sugar, and cocoa powder until smooth. Add eggs, vanilla, and salt, then fold in flour and chocolate chips.
  3. Bake for 25–30 minutes until a toothpick comes out with a few moist crumbs. Let cool completely.
  4. Melt chocolate for mousse. Whip heavy cream with powdered sugar and vanilla, then fold in chocolate until smooth.
  5. Spread mousse over cooled brownies. Refrigerate at least 1 hour. Garnish and serve.

Notes

Store in fridge up to 3 days. Freeze brownies without mousse for up to 1 month.