Banana passover sponge cake

7                    Eggs
   1       c            Sugar
     3/4   c            Cake Meal
     1/2   ts           Salt
     1/4   c            Potato Starch
   1       c            Chopped Walnuts
   1       c            Mashed Bananas (2 ripe)
     1/2   ts           vanilla

  Beat yolks with sugar until creamy. Add themashed
  bananas, beat well. Whip egg whites until stiff (in
  different bowl). Add cake meal, potato starch and salt
  to yolk mixture. Fold in egg whites into this mixture.
  Add flavoring fold in gently. Bake at 325 F. for an
  hour --more or less--. Use an angle food cake pan.
  Cool upside down for about 30 minutes or until cooled.
  Cut in half with knife. Ice with real whipped cream or
  cool whip. Top with bananas and a few walnuts.