Grand Champion Sponge Cake - cooking recipe

Ingredients

1 1/2 c. sifted flour
1/2 tsp. baking powder
6 egg whites
6 egg yolks
1 c. sugar
1/2 tsp. salt
1 tsp. cream of tartar
1/4 c. water
1/2 c. sugar
1 tsp. vanilla

Preparation

Sift together the flour, 1 cup sugar, baking powder and salt. In a large mixing bowl, beat egg whites until frothy.
Add cream of tartar.
Gradually beat in 1/2 cup sugar, a little at a time; beat until whites form stiff, but not dry, peaks.
In a medium bowl, combine yolks, water, vanilla and sifted dry ingredients. Beat at medium high speed for 4 minutes, or until mixture is light and fluffy.
Fold yolk mixture gently, but thoroughly, into the beaten egg whites.
Turn into an ungreased 10-inch tube pan.
Bake at 350\u00b0 for about 45 minutes.
Invert pan to cool.