I found this recipe off a diabetic website and changed it a bit. Feel free to use all sugar or sugar substitutes. You can add just about any fruit you want to this. Cook time does not include the chilling overnight. :)
This tastes like a lemon ice but with a more gourmet flavor, from the soymilk website. Sometimes I add lime zest instead of the orange or a combination of the three. You can make this lower in calories by using splenda in place of the sugar. The cooking time is for freezing. Sometimes it takes a little less than 3 hours to freeze.