You’ll Need:1 1/4 cups sifted cake flour 1 cup brown sugar, firmly packed 1 1/2 cups egg whites (from 12 to 14 eggs) 1 1/2 teaspoons cream of tartar 1 teaspoon salt 1 cup brown sugar, firmly packed 2 teaspoons vanilla extractDirections : Preheat oven to 350 degrees F. Combine