Lemon Sponge Cake

Directions

1. 1
   Beat egg yolks until very thick and lemon colored.
2. 2
   Gradually add sugar. Continue to beat until well blended.
3. 3
   Combine cold water, extract and rind. Add alternately in thirds with flour, sifted 3 times, to egg and sugar mixture. Beat egg whites until almost stiff.
4. 4
   Add baking powder and salt.
5. 5
   Continue beating until stiff.
6. 6
   Gently fold in the egg yolk mixture.
7. 7
   Pour into ungreased 9-inch tube pan. Bake at 350° for 50 to 55 minutes or until done. Invert pan 1 hour or until cake is cold.