- Cover a large, flat baking tray with foil.
- Place small scoops of vanilla ice-cream on the tray and freeze until hard.
- Melt chocolates in separate bowls over pans of simmering water.
- Once melted, set aside to cool.
- Transfer ice-cream scoops to a wire rack over a baking tray and spoon the dark chocolate over each scoop; it should harden immediately.
- Garnish each with a little of the milk chocolate.
- Freeze until firm before serving.