Take a cupful of the syrup from a jar of raspberry preserves and the same amount of juice from a can of pineapple; add two tablespoons of lemon juice and a syrup made by boiling together a pint of water and a cupful of sugar.
When cold add four tablespoons of orange juice and freeze. When stiff, open the freezer and add the white of an egg, beaten stiff with a teaspoon of powdered sugar.