2 eggs, separated
2/3 c. cold water
1 1/4 c. sugar
1/2 tsp. cream of tartar
1 1/2 c. sifted flour
1/2 tsp. baking powder
1/2 tsp. salt
1/2 tsp. lemon or vanilla extract

Place the egg yolks and water in a large bowl and beat until doubled in volume. Add 1 cup of sugar, beat for 7 minutes. Sift together the flour, baking powder and salt. Add to the egg yolk mixture and beat. Beat egg whites until foamy, add cream of tartar. Beat, adding 1/4 cup of sugar gradually, until whites are stiff. Fold gently into batter mixture, add flavoring. Pour into ungreased tube pan and bake at 350 degrees for 45 minutes. Invert on cake rack and cool in the pan.