Sponge Cake(Dessert)

Directions

1. 1
   Beat egg yolks; gradually add sugar, beating until thick and light in color.
2. 2
   Stir in lemon juice and rind.
3. 3
   Beat egg whites and salt until stiff, but not dry.
4. 4
   Pile on top of the egg yolk mixture.
5. 5
   Sift flour, mixed with baking powder, over egg whites and fold in carefully.
6. 6
   Turn into a 10-inch tube pan.
7. 7
   Bake at 325° (170°C) for 50 minutes or until browned and free from sides of pan. Invert and let cool.