This light and fluffy cake can be made at home quite easily as long as the required equipment is available. Most of the ingredients are easy to find at the grocery store except for cream of tartar, which can be found in the spice aisle.
1 ½ cups egg whites (10-12 eggs)
1 ½ cups powdered sugar
1 cup sifted flour or all purpose flour
1 ½ teaspoons cream of tartar
1 teaspoon vanilla
1 cup granulated sugar
In large mixing bowl allow the egg whites to sit for 30 minutes. While the eggs are sitting, sift the powdered sugar and flour together three times. Preheat the oven to 350 degrees Fahrenheit. Add the cream of tartar and vanilla to the egg whites. Beat them with an electric mixer until soft tips peaks from in the mixture. Slowly add the granulated sugar 2 tablespoons at a time, repeating until all 16 tablespoons have been added. Beat the mixture until firmer tipped peaks form. Remove the electric mixer and fold the sifted flour mixture into the batter with a rubber spatula. Pour the batter into an ungreased 10-inch tube pan and bake for 40-45 minutes. When removed from the oven the cake should be inverted in the pan while it cools.