12-Egg Sponge Cake

Directions

1. 1
   Beat the 12 egg yolks until thick; add the sugar gradually until you have a rich, thick mixture.
2. 2
   Add lemon juice, lemon rind and orange juice and continue beating.
3. 3
   Sift the matzoh cake meal, potato starch and salt together three times; fold in lightly. Beat the egg whites until they stand in peaks, but be sure you stop before they look dry (very important!).
4. 4
   Gently fold into the cake batter.
5. 5
   Line bottom of an 8 x 14-inch pan with waxed paper or oiled brown paper.
6. 6
   Pour in the batter and bake at 325° for 1 hour.
7. 7
   Invert on cake rack to cool before removing from pan.