Sponge Cake - cooking recipe

Ingredients

4 eggs, separated
1 c. water
2 c. sugar
2 c. flour
2 tsp. baking powder
1 tsp. vanilla

Preparation

Put egg whites in small bowl and set aside.
Put egg yolks in a separate bowl.
Add remaining ingredients.
Beat egg whites until stiff.
Add to mixture.
Bake in a tube pan at 350\u00b0 for 1 hour.