Wine grapes come in over 5,000 varieties each ranging in different colors, flavors and sweetness. Unlike other fruits, grapes stop ripening once they are plucked from the vine. Once you have plucked a bunch of sour grapes, you are stuck with them. Eating sour grapes can set your "teeth on edge" and may even make your tummy upset. For most people, eating a sour treat is not enjoyable. Sweeten up your sour grapes to make them more palatable.
Pluck the grapes from one bunch from their stems, which should yield between 20 to 40 grapes. Place them on a tray and freeze them for at least three hours. You can use any color grapes for this recipe.
Whisk the egg whites of two eggs with 1/8 teaspoon of lemon juice in a glass bowl. This mixture makes a sort of glue that holds the sugar in place. If you have an egg allergy, you can use an egg substitute.
Pour 2 cups of white granulated sugar in another bowl. Working in batches of five or 10, drop the grapes in the egg mixture, blot them dry to remove the excess egg, then roll them in the sugar.
Arrange the sugared grapes on decorative trays and serve them immediately.