Hey y’all! If you’re searching for a dessert that’s both indulgent and impressive, look no further than these Chocolate Mousse Brownies. Perfect for birthdays, dinner parties, or just because, this recipe combines the rich, fudgy goodness of brownies with the light, airy texture of chocolate mousse. Let’s get cooking!
Why You’ll Love This Recipe
- Two Desserts in One: Enjoy the best of both worlds with a brownie base and a mousse topping.
- Rich and Decadent: This dessert is a chocolate lover’s dream come true.
- Perfect for Any Occasion: From casual gatherings to fancy dinners, these brownies are always a hit.
- Make-Ahead Friendly: Prepare in advance and have dessert ready when you need it.
- Easy to Customize: Add your favorite toppings for a personal touch.
Ingredients
- 1 cup (226g) unsalted butter
- 2 cups (400g) granulated sugar
- 1 cup (95g) unsweetened cocoa powder
- 1 teaspoon salt
- 4 large eggs
- 1 cup (125g) all-purpose flour
- 1 teaspoon vanilla extract
- 1 cup (180g) semi-sweet chocolate chips
- 1 cup (240ml) heavy cream
- 8 oz (225g) dark chocolate, chopped
Directions
Prepare the Brownie Base
- Preheat your oven to 350°F (175°C) and grease a 9×13 inch (23x33cm) baking pan.
- In a medium saucepan, melt the butter over low heat. Remove from heat and stir in the sugar, cocoa powder, and salt until smooth.
- Beat in the eggs one at a time, then add the vanilla extract.
- Fold in the flour and mix until just combined. Stir in the chocolate chips.
- Pour the batter into the prepared pan and bake for 25-30 minutes or until a toothpick inserted in the center comes out clean. Let cool completely.

Make the Chocolate Mousse
- In a small saucepan, heat the heavy cream over medium heat until it begins to simmer.
- Remove from heat and pour the cream over the chopped dark chocolate. Let sit for 2 minutes, then stir until smooth.
- Allow the mixture to cool slightly before spreading evenly over the cooled brownies.
Notes
- For best results, use high-quality chocolate for both the brownies and the mousse. Check out this guide on the best chocolate brands.
- Ensure your mousse is fully set by refrigerating the brownies for at least 2 hours before serving.
Variations
- Peanut Butter Mousse: Swirl in some creamy peanut butter into the mousse for a nutty twist.
- Mint Chocolate: Add peppermint extract to the mousse for a refreshing flavor.
- Espresso Infusion: Mix in a shot of espresso with the melted chocolate for a mocha kick.
Required Equipment
- Baking pan (9×13 inch / 23x33cm)
- Medium saucepan
- Mixing bowls
- Spatula
- Whisk

Storage Instructions
Store your Chocolate Mousse Brownies in an airtight container in the refrigerator for up to 5 days. You can also freeze them for up to 2 months, just make sure to thaw them in the fridge before serving.
Suggested Pairings
These decadent brownies pair wonderfully with a scoop of vanilla ice cream or a dollop of whipped cream. For a cozy evening, enjoy alongside a hot cup of coffee or tea.
Pro Tips
- Let the brownies cool completely before adding the mousse to prevent melting. For more on baking techniques, visit King Arthur Baking’s guides.
- Chill your mixing bowl before making the mousse for better texture.
- Use a serrated knife to cut the brownies for cleaner edges.
FAQ
- Can I make this recipe gluten-free? Yes, substitute the all-purpose flour with a 1:1 gluten-free flour blend.
- Can I use milk chocolate instead of dark chocolate? Absolutely! Just note that the overall sweetness will increase.
- How can I make the mousse firmer? Reduce the amount of cream slightly or refrigerate longer before serving.