Mom'S Orange Sponge Cake - cooking recipe

Ingredients

5 egg whites
pinch of salt
1/2 c. sugar
1/4 tsp. cream of tartar
5 egg yolks
1/2 c. sugar
1 grated orange peel
4 Tbsp. orange juice
1 c. flour

Preparation

Beat egg whites, salt, sugar and cream of tartar until fluffy. Beat
remaining ingredients in another bowl.
Fold yellow mixture into white mixture and put into a greased and floured tube pan. Bake at 325\u00b0 for 1 hour.