Sponge Cake

Directions

1. 1
   Separate eggs and beat yolks until light and lemon-colored. Mix together orange juice, orange rind, sweetener, vanilla and lemon juice.
2. 2
   Add to egg yolks and beat until fluffy, approximately 10 minutes.
3. 3
   Combine flour and salt; gently sprinkle flour mixture over egg yolks, folding in a little at a time.
4. 4
   Beat egg whites until foamy.
5. 5
   Add cream of tartar and beat until stiff. Fold egg mixture gently into egg whites.
6. 6
   When thoroughly blended, pour into 9-inch ungreased tube pan.
7. 7
   Bake at 325° for one hour and five minutes.
8. 8
   Invert to cool.
9. 9
   Should serve 12.