Beat 4 egg yolks with 3 tablespoons cold water until lemon colored. Add 1 1/2 cups sugar and continue to beat. Add 1/2 cup boiling water. Sift 1 1/2 cups flour with 1 teaspoon baking powder and 1/4 teaspoon salt. Add and beat well. Fold in 4 egg whites well beaten with 1/2 teaspoon cream of tartar. Flavor with 1 teaspoon vanilla or orange extract. Pour into a 10-inch ungreased tube pan. Bake in 300 degree oven for 1 hour.

NOTE: Use electric mixer for egg yolks, cold water. Also to beat egg whites. The flour mixture fold in by hand. The egg whites also fold in by hand at the last.