Orange Sponge Cake

Directions

1. 1
   Don't grease the pan.
2. 2
   Beat the egg yolks until lemon color. Add the sugar gradually.
3. 3
   Add the orange juice and the rind.
4. 4
   Add the flour with the salt.
5. 5
   Sift together once.
6. 6
   Beat the egg whites and fold into the mixture.