Place chocolate in the top of a double boiler. Heat until chocolate is completely melted. Remove from heat
10 ounces bittersweet chocolate pieces
Mix in butter with one tablespoon at a time. Mix with a whisk until butter is completely combined.
2 tablespoons butter
Whip Egg Whites
Put egg whites in a bowl. Mix with a mixer at high speed until egg whites form soft peaks.
4 egg whites
With mixer running, slowing add sugar while mixing. If you add sugar too fast, your egg whites could deflate.
¼ cup granulated sugar
Whipped Cream
Put heavy cream in a different bowl. Mix with a mixer at high speed until soft peaks are formed.
1 cup heavy cream
Assemble Mousse
Add ⅓ of the egg whites into the chocolate mixture. Use a large spatula and fold egg whites into chocolate. Do not stir mixture or egg whites will deflate.
Add remaining egg whites and continue folding until no white remains.
Add whipped cream and fold gently until mousse does not show any white streaks and is one consistent color.
Place into individual serving dishes and serve or cover and refrigerate.
Notes
If serving later, put into individual serving dishes and cover each dish with plastic wrap before refrigerating. Garnish before serving with whipped cream and fresh berries.Tips for the Best Chocolate Mousse Recipe
Use Quality Chocolate: Choose good-quality bittersweet chocolate for the best flavor.
Properly Melt Chocolate: Melt the chocolate gently using a double boiler to avoid burning.
Whip Egg Whites Correctly: Whip egg whites until soft peaks form, then gradually add sugar to maintain their structure.
Whip Cream to Soft Peaks: Whip heavy cream to soft peaks separately before folding into the mixture.
Fold Gently: Carefully fold the egg whites and whipped cream into the chocolate to keep the mousse airy.
Chill Before Serving: Allow the mousse to chill in the refrigerator for a firmer texture.
Garnish Simply: Add toppings like whipped cream, fresh berries, or shaved chocolate for an elegant presentation.