Pre-make the Chocolate Vodka well in advance.
Place the cacao nibs and water into Thermomix bowl and brew 10 min/90°C/speed 1. Blend 10 sec/speed 5.
Strain out solids and cool liquid completely. Chill until icy.
When ready to assemble, place vodka, the chilled brewed chocolate, vanilla, ice and ice cream into Thermomix bowl and blend 10 sec/speed 8.
Pour into 2 large glasses over the top of additional scoops of ice cream and top with mounds of whipped cream and garnish with a few cacao nibs or shaved chocolate. Serve immediately.