Passover Sponge Cake (Plava) - cooking recipe

Ingredients

9 egg whites
9 egg yolks
1 1/3 cups confectioners' sugar
1 1/2 lemons, juiced
1/2 cup potato flour
1/2 cup matzo cake meal

Preparation

Beat whites until stiff. Beat in confectioners' sugar. Beat together yolks and lemon juice: fold yolk mixture into egg whites. Fold in potato flour and matzo meal. Pour batter into ungreased tube pan.
Bake at 375 degrees F (190 degrees C) for approximately 1 hour.