3 cups Fruit juice; any flavor
1/2 cup Sugar
1 cup Water
2 teaspoons Freshly-squeezed lemon juice
In a medium saucepan, combine the sugar and water and bring to a boil, stirring until the sugar dissolves. Let cool. Stir in the fruit juice and lemon juice and pour into a chilled 13- by 9-inch metal baking dish. Place in the freezer and freeze, stirring every 30 minutes until the mixture is firm.
Source: Sara Moulton