• 1 cup heavy cream, cold
• 4 1/2 ounces (128g) bittersweet chocolate, finely chopped
• 2 tablespoons (28g) unsalted butter, cubed
• 2 tablespoons (30mL) brewed espresso or very strong coffee
• 3 large eggs, separated
• 1 tablespoon sugar
• Raspberries to serve, optional
• Whipped cream to serve, optional

1. Whip heavy whipping cream, chill
2. Put chocolate, butter, espresso in double boiler, melt together
3. Take off heat, let sit until chocolate is just warm to the touch. Don't let sit too long
4. While cooling, whip egg whites until they just hold shape
5. Add sugar, beat to stiff peaks
6. Stir egg yolks into chocolate
7. Stir one third whipped cream into chocolate
8. Fold in half egg whites
9. Fold in remaining egg whites
10. Fold in remaining whipped cream
11. Spoon into serving dishes, let sit in fridge 8-24 hours

https://www.simplyrecipes.com/recipes/chocolate_mousse/