Learn to make the plain custard base, a starting point for many Coolhaus flavors, then fold in the special ingredients. The base has to chill for a full 24 hours so make sure you give yourself two days for Coolhaus ice cream. Coolhaus recommends using a Cuisinart ICE-100 machine for best results.
Tips from Coolhaus:
Don't overcook the base, if it starts to look like scrambled eggs, it is overcooked
Use the freshest ingredients
Add alcohol at the very end
Freeze finished ice cream for two hours before serving