Make sure you're whisking while you add the milk. Slowly adding the milk and whisking are the keys to making it smooth. Some people will even just add the milk 1/3 at a time. So add a half cup while whisking, get it integrated, then add another half cup, repeat til all the milk is in.
Make sure you're whisking while you add the milk. Slowly adding the milk and whisking are the keys to making it smooth. Some people will even just add the milk 1/3 at a time. So add a half cup while whisking, get it integrated, then add another half cup, repeat til all the milk is in.