This Dairy Free, Nut Free cake may be a saviour for some mom's with allergic children
Preheat oven to 165C.
Beat egg whites until stiff but not dry.
Combine cream of tartar, baking powder, vanilla, cinnamon, oats, and mashed bananas. In a separate bowl combine the flour, confectioner's sugar, and salt.
Fold the banana mixture into the egg whites. Then fold the flour mixture into the egg white/banana mixture.
Pour batter into one 9 or 10 inch round cake pan, coated with a non-stick cooking spray.
Bake for 1 hour, until cake is firm and lightly golden.
Cool for five minutes then slip out of pan on to a serving dish. Garnish with a light dusting of confectioner's sugar.