1. Get the vodka - must be good quality i.e. over 37.5%
2. Get the packet of custard
3. Boil the kettle (Drink some of the vodka while you are waiting)
4. Tip the custard mix into a jug
5. Tip the boiled water into the custard and whisk with a fork

6. Put it into a nice dishy
7. Tip the vodka into the custard
8. Drink with a straw