01 - In a mixing bowl, gently combine raspberries, strawberries, and blueberries. Set aside.
02 - In a chilled bowl, whip heavy cream with cocoa powder, powdered sugar, and vanilla extract until soft peaks form.
03 - Divide berry mixture among four dessert glasses or bowls. Spoon cocoa cream generously over the berries.
04 - Top with shaved dark chocolate and garnish with mint leaves if desired. Serve immediately, or refrigerate for up to 2 hours before serving.