Sift sugar, flour and cocoa together; set aside. Beat egg whites (at room temperature) at ... minutes or until cake springs back when touched lightly ... gently remove from pan.
Sift flour 3 times. Using a rotary beater, beat egg yolks until thick and lemon-colored. ... hour or until cake is cool. Cocoa Sponge Cake: Replace 1/4 cup flour ... powdered sugar on top.
Ingredients: 6 (flour .. juice .. rind .. salt .. sugar ...)