Equipment
Ingredients
Mousse Base
- 12 egg, separated
- 330 g granulated sugar
- 10 ml vanilla extract
- 1 g salt, fine
- 180 ml brandy
- 425 g unsweetened chocolate, chopped
- 85 g semisweet chocolate, chopped
- 250 g unsalted butter, softened
- 180 ml brewed coffee, room temperature
Aeration and Assembly
- 540 ml heavy cream, chilled
- 1 chocolate pie crust, prepared
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 660 kcal
- Protein
- 11 g
- Carbohydrates
- 43 g
- Fat
- 47 g
- Fiber
- 5 g
- Sugar
- 29 g
- Sodium
- 174 mg
- Saturated Fat
- 27 g
- Trans Fat
- 0 g
- Monounsaturated Fat
- 15 g
- Polyunsaturated Fat
- 3 g
- Cholesterol
- 212 mg
- Potassium
- 364 mg
- Calcium
- 81 mg
- Iron
- 6.2 mg
- Magnesium
- 107 mg
- Phosphorus
- 230 mg
- Zinc
- 3.6 mg
- Vitamin A
- 306 mcg
- Vitamin C
- 0 mg
- Vitamin D
- 1.3 mcg
- Vitamin E
- 1.5 mg
- Vitamin K
- 8 mcg
- Vitamin B6
- 0.1 mg
- Vitamin B12
- 0.4 mcg
- Thiamin
- 0.12 mg
- Riboflavin
- 0.33 mg
- Niacin
- 0.9 mg
- Folate
- 39 mcg
- Water
- 63 g
- Alcohol
- 0 g
- Caffeine
- 30 mg
Sources: Aggregated Public Data, USDA FoodData Central
Method
In the top of a double boiler, whisk together the egg yolks, 290g of the sugar, vanilla, salt, and brandy.
Place the yolk mixture over simmering water and whisk constantly until the mixture thickens and coats the back of a spoon.
Melt the unsweetened and semisweet chocolates together in a clean bowl over hot water (approx. 45°C/113°F).
Beat the softened butter into the melted chocolate one piece at a time until the mixture is smooth and glossy.
Combine the chocolate mixture and the egg yolk mixture, stirring until fully incorporated.
Pour in the coffee and whisk until the base is smooth.
In a clean bowl, beat the egg whites until soft peaks form.
Gradually add the remaining 40g of sugar to the whites and continue beating until stiff peaks form.
Fold approximately 240ml (1 cup) of the egg whites into the chocolate mixture to lighten the texture.
Gently fold in the remaining egg whites using a spatula until no white streaks remain, taking care not to deflate the volume.
Whip the heavy cream in a chilled bowl until stiff peaks form.
Fold the whipped cream into the chocolate mousse until the color is uniform.
Pour the mousse into the prepared chocolate crust or spoon into 16 individual dishes.
Cover and refrigerate for at least 15 hours (overnight) until firmly set.
Chef's Notes
- Ensure the egg yolk mixture is cooled slightly before adding the butter to prevent the butter from melting into oil.
- For the best volume, use a copper or stainless steel bowl for whisking egg whites.
Storage
Refrigerator: 3 days — Keep covered to prevent absorbing refrigerator odors.
Freezer: 1 month — Thaw in refrigerator for 4 hours before serving.
Troubleshooting
Mousse is dense and heavy
Cause: Egg whites or cream were deflated during folding
Fix: Cannot be fixed once folded; serve as a chocolate ganache-style pie.
Prevention: Use a gentle circular folding motion with a spatula; do not stir or whisk during the final stages.
Chocolate mixture is grainy or lumpy
Cause: Chocolate seized due to moisture contact or overheating
Fix: Stir in a teaspoon of vegetable oil or additional softened butter to smooth it out.
Prevention: Ensure all bowls and utensils are completely dry before melting chocolate.
Cultural Context
Chocolate mousse, a quintessential French dessert, is known for its rich, airy texture and decadent flavor. While its exact origins are debated, it gained popularity in the late 19th and early 20th centuries, becoming a staple in fine dining establishments. This pie version offers a delightful twist on the classic, combining the elegance of mousse with the satisfying crunch of a chocolate crust.
