Cantaloupe Granita

1. Seed and peel the melons and cut into chunks. Whirl enough of the fruit in a food processor fitted with a metal blade or in a blender to make 3 cups. Add the lime or lemon juice. Pour into a shallow metal pan and freeze.
2. Allow to sit at room temperature until you can break it up with a wooden spoon. Transfer to a bowl and beat until slushy. Cover and refreeze.
3. To serve, soften at room temperature for 5 minutes and scoop into dessert cups or glasses.