Blueberry Snack Cake

Ingredients

2 cups all-purpose flour

1 1⁄2 cups sugar

1⁄2 cup cold butter or 1⁄2 cup margarine

1 teaspoon baking powder

1 cup milk

2 eggs, separated

2 cups blueberries, fresh or frozen (If using frozen, do not thaw before adding to the batter)