This is such a wonderful summertime treat! I have used all kinds of fruit combinations in this; use your imagination. Far richer and intense in flavour than anything you can buy, and yet it's almost all just healthy fruit. The fruits that work best have a fairly smooth fleshy texture; things like mangoes, muskmelons, peaches, apricots, and bananas. But also good are strawberries, pineapple, blueberries and the like. Seedy or watery fruits can be used, but it is best to use them mixed with something that has a smoother denser texture, and to use less of them. Cook time is tempering time, but prep time does not include freezing time.