Chocolate Chip Cake

Ingredients

 * 9 eggs, separated
 * 3/4 cup cake meal
 * 3/4 cup potato starch
 * 1 cup sugar
 * Chocolate, grated
 * 1/2 cup oil
 * 1/2 cup orange juice

Instructions
Beat egg yolk with 1/2 cup sugar. Add oil and orange juice. Beat well. Beat egg whites with remaining sugar. Fold dry ingredients into yolks. Fold yolk mix into egg whites and add chocolate. Pour batter into greased baking pan. Bake at 325° for 50 minutes, then 350° for 15 minutes.