Easy Chocolate Mousse Brownies – Fancy Dessert Made Simple
A luscious dessert featuring a fudgy brownie base topped with airy chocolate mousse. Perfect for parties or special occasions.
- Prep Time: 25 minutes
- Cook Time: 30 minutes
- Total Time: 4 hours 55 minutes (includes chilling)
- Yield: 16 servings 1x
Ingredients
For the Brownie Layer:
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1/2 cup (1 stick) unsalted butter
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1 cup granulated sugar
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1/4 cup brown sugar (optional)
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2 large eggs
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1 tsp vanilla extract
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1/3 cup unsweetened cocoa powder
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1/2 cup all-purpose flour
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1/4 tsp salt
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4 oz semi-sweet chocolate, chopped
For the Mousse Layer:
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6 oz dark chocolate (60–70% cacao), chopped
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2 egg yolks
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1/4 cup powdered sugar
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1 1/4 cups heavy whipping cream
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1 tsp unflavored gelatin (optional)
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1 tbsp water (for blooming gelatin)
Instructions
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Preheat oven to 350°F (175°C). Line a 9×9-inch baking pan with parchment paper.
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Melt butter and semi-sweet chocolate together. Stir in sugars.
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Add eggs and vanilla, mix until smooth.
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Fold in cocoa powder, flour, and salt. Do not overmix.
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Pour into pan and bake for 25–30 minutes. Let cool completely.
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For mousse, melt dark chocolate and let cool slightly.
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In a separate bowl, whisk egg yolks with powdered sugar until pale.
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(Optional) Bloom gelatin in water, heat, and stir into the chocolate mixture.
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Mix chocolate into yolks, then fold in whipped cream in batches.
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Spread mousse over cooled brownie layer. Chill 4+ hours until set.
Notes
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Use high-quality chocolate for best results.
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Add espresso powder or liqueur for extra depth.
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Store in fridge up to 5 days or freeze for up to 1 month.
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Slice with a hot knife for clean layers.