1 cup sugar
1/2 cup butter
1 tbsp. grated orange rind
2 1/2 cups cake flour
1/4 tsp baking soda
2 1/2 tsp baking powder
1/2 cup orange juice
1/2 tsp salt
1/2 cup cold water
4 eggs, separated
1/2 cup sugar
Optional garnish: Whipping cream and orange zest

Directions

Preheat oven to 350F and grease and flour a 13 x 9 inch rectangle pan.
Beat sugar, butter and orange rind at medium speed.
In a medium bowl sift together cake flour, baking soda, baking powder.
Add orange juice and salt and mix.
Add cold water.
Add mixture to your sugar/butter mixture.
Beat egg whites until frothy and gradually add 1/2 cup sugar.
Fold egg whites into batter and pour into greased and floured pan.
Bake for 25-30 minutes until a fork comes out clean.
Let cool slightly and serve with whipping cream.