Whats the optimal number of people for fondue party?
Depends. Of course, 2 is minimum, and while most authorities warn you about going over 4 people, you can risk 6 (or 3 pairs), if you are sure that there will be only one conversation going along. Many aspiring fondue eaters gave up on this wonderful way to spend time purely because the perfect mood was destroyed by couple conversations going on at the same time.