12 eggs, separated
2 cups sugar
juice and grated rind of
1/4 cup orange juice
1 cup matzo CAKE meal
1 cup potato starch
3/4 teaspoon salt
the egg yolks until thick and lemon colored, then add
the sugar gradually, beating as you add. Continue to beat
until the mixture is thick and puffing with air. Add the lemon
juice and rind, and orange juice. Mix together the cake
meal, potato starch, and salt; fold lightly into the egg yolk
mixture. Beat the egg whites until they stand in peaks, but
stop beating before they look dry and shiny. Fold into the
cake batter. Line bottom of a regular cake pan (about 8" x 14"
or 9" x 13") with wax paper; pour in the batter. Bake in a slow
oven (325 degrees) for one hour, or until baked through.
topped with powdered sugar or sugared berries.