NOTE: This recipe calls for raw eggs, and tastes most ice-creamy that way. If you prefer to substitute pasteurized eggs whites, you can replace each yolk with an equal amount of water (about 2 T.) and a few drops of vegetable oil (about 1/2 T.). Without the yolks, the consistency of the final product is more sorbet-like, but it's still light and refreshing. Continue by pureeing as directed above.