Whip whites, in the end add sugar and yolks. Then mix with flour and potato flour, baking powder and cocoa. Put cake into greased round form. Bake 30 minutes in 320 degrees F (160 degrees C).
Put chopped walnuts into hot milk. Cool it down. Beat butter with sugar and add step-by-step yolks and walnuts (use mixture to decoration).
Make punch (mix ingredients).
Divide sponge cake on 3 parts. Pour them punch. Put walnuts mixture between them. Decorate (use mixture and walnuts).
Bon appetite! | 
