There is a frozen yogurt store that claims to make frozen yogurt using only skim milk and flavor extracts. Is this possible? Wouldn't they need fat or something to make it not icy and sugar to make it taste good? Has anyone made frozen yogurt with milk, if so how? I love soft serve ice cream and frozen yogurt and desperately am looking for a low calorie recipe that I could make. I understand its not technically frozen yogurt since it uses milk. Thanks!