This delicious Julia Child Chocolate Mousse Cake is a rich and creamy dessert that’s both simple and indulgent. With a light, fluffy cake base and a velvety chocolate mousse, it’s perfect for any occasion. You can easily customize the recipe with common ingredients for a truly satisfying treat!
Ingredients Needed
- 1/2 cup unbleached all-purpose flour
- 1/4 cup sugar
- 2 tbsp cocoa powder, sifted
- 1/4 tsp baking soda
- 1/3 cup water
- 2 tbsp canola oil
- 1 tsp white vinegar
Chocolate Mousse Ingredients:
- 7 oz dark chocolate, chopped
- 1 tsp gelatin
- 2 tbsp water
- 1/2 cup sugar
- 2 cups (500 ml) 35% heavy whipping cream
Ganache Ingredients:
- 3 oz dark chocolate, chopped
- 1/3 cup 35% heavy whipping cream
How To Make Chocolate Mousse Cake
- Preheat oven: Preheat your oven to 350°F (180°C) and position the rack in the middle.
- Prepare the pan: Butter an 8-inch (20 cm) springform pan and line the bottom with parchment paper.
- Mix dry ingredients: In a bowl, combine flour, sugar, cocoa powder, and baking soda.
- Add wet ingredients: Stir in water, oil, and vinegar until the batter is smooth.
- Bake the cake: Spoon the batter into the prepared pan and bake for 10-12 minutes, or until a toothpick comes out clean. Cool on a wire rack. Do not unmould.
- Chocolate Mousse:
- Melt chocolate: In a heatproof bowl over simmering water (or in the microwave), melt the chocolate. Let it cool slightly.
- Bloom gelatin: Sprinkle the gelatin over the water and let it sit for 5 minutes to bloom.
- Heat cream and dissolve gelatin: Heat 1/2 cup (60 ml) of the cream with sugar in a saucepan over medium heat until sugar dissolves. Remove from heat and stir in the bloomed gelatin until fully dissolved.
- Combine with chocolate: Add the cream-gelatin mixture to the melted chocolate and stir until well combined.
- Whip the cream: Whip the remaining 1 3/4 cups (430 ml) heavy whipping cream in a separate bowl until stiff peaks form.
- Fold whipped cream: Gently fold in 1/4 of the whipped cream into the chocolate mixture, then fold in the rest.
- Assemble mousse layer: Spoon the mousse over the cooled cake in an even layer and refrigerate for 4 hours, or freeze for quicker results.
- Ganache:
- Prepare ganache: Place chopped chocolate in a bowl. Heat the cream in a microwave or small saucepan until it begins to boil.
- Combine: Pour the hot cream over the chopped chocolate and let it sit for 1 minute to melt. Stir until smooth.
- Finish the cake: Pour the ganache over the mousse-covered cake, allowing it to cascade over the sides.
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Recipe Tips
- Use room temperature ingredients: Ensure your ingredients, like cream and eggs, are at room temperature before starting. This helps the mousse set perfectly and prevents any curdling.
- Don’t overmix the mousse: When folding the whipped cream into the chocolate mixture, do it gently to keep the mousse light and airy.
- Let the cake cool completely: Cool the cake on a wire rack before adding the mousse. This prevents the mousse from melting.
- Use high-quality chocolate: Opt for a good dark chocolate to give your mousse a rich, luxurious flavor.
- Chill properly: For the best results, let the mousse cake set in the fridge for at least 4 hours. This allows it to firm up and makes cutting easier.
How To Store & Reheat Leftovers
- Refrigerate: Wrap it tightly in plastic wrap or place it in an airtight container. Store it in the fridge for up to 3 days.
- Freeze: To freeze, wrap leftover chocolate mousse cake tightly in plastic wrap and then foil. Freeze for up to 1 month. To thaw, leave it at room temperature for 1-2 hours before serving.
Nutrition Fact
Serving Size: 1 slice (approximately 62 grams)
- Calories: 230
- Total Fat: 11 g
- Saturated Fat: 4 g
- Cholesterol: 10 mg
- Sodium: 200 mg
- Total Carbohydrate: 33 g
- Dietary Fiber: 1 g
- Sugars: 26 g
- Protein: 2 g
- Calcium: 60 mg
- Iron: 0.5 mg
Try More Recipes:
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Julia Child Chocolate Mousse Cake
Description
This delicious Julia Child Chocolate Mousse Cake is a rich and creamy dessert that’s both simple and indulgent. With a light, fluffy cake base and a velvety chocolate mousse, it’s perfect for any occasion. You can easily customize the recipe with common ingredients for a truly satisfying treat!
Ingredients
Ganache Ingredients:
Ganache Ingredients:
Instructions
- Preheat oven: Preheat your oven to 350°F (180°C) and position the rack in the middle.
Ganache:
Prepare ganache: Place chopped chocolate in a bowl. Heat the cream in a microwave or small saucepan until it begins to boil.
Combine: Pour the hot cream over the chopped chocolate and let it sit for 1 minute to melt. Stir until smooth.
Finish the cake: Pour the ganache over the mousse-covered cake, allowing it to cascade over the sides. - Prepare the pan: Butter an 8-inch (20 cm) springform pan and line the bottom with parchment paper.
- Mix dry ingredients: In a bowl, combine flour, sugar, cocoa powder, and baking soda.
- Add wet ingredients: Stir in water, oil, and vinegar until the batter is smooth.
- Bake the cake: Spoon the batter into the prepared pan and bake for 10-12 minutes, or until a toothpick comes out clean. Cool on a wire rack. Do not unmould.
- Melt chocolate: In a heatproof bowl over simmering water (or in the microwave), melt the chocolate. Let it cool slightly.
- Bloom gelatin: Sprinkle the gelatin over the water and let it sit for 5 minutes to bloom.
- Heat cream and dissolve gelatin: Heat 1/2 cup (60 ml) of the cream with sugar in a saucepan over medium heat until sugar dissolves. Remove from heat and stir in the bloomed gelatin until fully dissolved.
- Combine with chocolate: Add the cream-gelatin mixture to the melted chocolate and stir until well combined.
- Whip the cream: Whip the remaining 1 3/4 cups (430 ml) heavy whipping cream in a separate bowl until stiff peaks form.
- Fold whipped cream: Gently fold in 1/4 of the whipped cream into the chocolate mixture, then fold in the rest.
- Assemble mousse layer: Spoon the mousse over the cooled cake in an even layer and refrigerate for 4 hours, or freeze for quicker results.
Chocolate Mousse:
Notes
- Use room temperature ingredients: Ensure your ingredients, like cream and eggs, are at room temperature before starting. This helps the mousse set perfectly and prevents any curdling.
- Don’t overmix the mousse: When folding the whipped cream into the chocolate mixture, do it gently to keep the mousse light and airy.
- Let the cake cool completely: Cool the cake on a wire rack before adding the mousse. This prevents the mousse from melting.
- Use high-quality chocolate: Opt for a good dark chocolate to give your mousse a rich, luxurious flavor.
Chill properly: For the best results, let the mousse cake set in the fridge for at least 4 hours. This allows it to firm up and makes cutting easier.