– 200g dark chocolate, 60 to 70% cacao for the chocolate mousse

– 300ml heavy cream for the chocolate mousse

– 1 teaspoon vanilla extract for the chocolate mousse

– 1 tablespoon sugar, optional for the chocolate mousse

– 250g mascarpone cheese for the mascarpone mousse

– 150ml heavy cream for the mascarpone mousse

– 2 tablespoons powdered sugar for the mascarpone mousse

– 1 teaspoon vanilla extract for the mascarpone mousse

– 150g digestive biscuits or graham crackers for the base

– 60g unsalted butter, melted for the base

– 100g dark chocolate, chopped for the mirror glaze

– 100g sugar for the mirror glaze

– 100g glucose syrup or corn syrup for the mirror glaze

– 60ml water for the mirror glaze

– 60ml heavy cream for the mirror glaze

– 8g powdered gelatin for the mirror glaze

– 40ml cold water for blooming the gelatin