Chocolate Mousse in Chocolate Shell

8 steps · 45 min total

1. 01

   Chill Cream and Equipment

   Start by chilling 1 1/2 cups of whipping cream in the refrigerator. While that's happening, pop a metal mixing bowl and your mixer beaters into the freezer; getting them extra cold helps the cream whip up faster and hold its shape.
2. 02

   Melt Chocolate Mixture

   Set up a double boiler and combine the chocolate chips, strong coffee, rum, and butter in the top bowl. Melt this mixture over water that is just barely simmering, stirring constantly until it's completely smooth and glossy.
3. 03

   Cool the Chocolate

   Take the chocolate off the heat while a few small chunks are still visible; they'll melt into the residual warmth as you stir. Continue stirring occasionally as it cools, aiming for a temperature just above body temperature – it should feel warm, not hot, to the touch.
4. 04

   Bloom and Dissolve Gelatin

   Pour the remaining 1/4 cup whipping cream into a metal measuring cup and sprinkle in the gelatin. Let the gelatin "bloom" for 10 minutes; you'll see it soften and swell.

   Gently heat the measuring cup by swirling it over a low gas flame or a candle, just until the gelatin completely dissolves and the liquid is clear. Be careful not to boil it, as high heat can damage the gelatin's setting power. Stir this warm mixture into the cooled chocolate and set it aside.

5. 05

   Fold in Whipped Cream

   In your chilled mixing bowl, beat the cream until it forms medium peaks – it should hold its shape but still be soft and billowy. Take about 1/4 of the whipped cream and stir it into the chocolate mixture to lighten it, making the chocolate easier to fold without deflating the cream.

   Gently fold in the remaining whipped cream in two additions. Don't worry if you see a few streaks of white; that's fine. The key is to avoid overworking the mousse, which can deflate its airy texture.

6. 06

   Chill the Mousse

   Spoon the mousse into individual bowls, chocolate cups, or martini glasses. Chill for at least 1 hour to allow it to set until firm.
7. 07

   Garnish and Serve

   Garnish with fresh fruit just before serving.
8. 08

   Overnight Storage

   If you plan to refrigerate the mousse overnight, chill it uncovered for 1 hour first. This helps prevent condensation. After that, cover each serving tightly with plastic wrap.