Feather Sponge Cake

Directions

1. 1
   Beat egg yolks until thick and lemon colored.
2. 2
   Add water; continue beating until very thick.
3. 3
   Gradually beat in sugar; add vanilla and extract.
4. 4
   Fold in flour that has been sifted with salt, adding a little at a time.
5. 5
   Beat egg whites until foamy.
6. 6
   Add cream of tartar and beat until forms glossy peaks.
7. 7
   Fold into batter. Pour into ungreased angel food cake pan.
8. 8
   Bake at 325° for 1 hour. Frost with Butter Frosting.