Beat butter and sugar until it looks like cream. Add the 2 yolks and then 2 eggs, when all is well mixed add flour with baking powder and vanilla. Put it on a greased pan to 10 in. diameter.
Cook in the medium oven temperature. Are 3 layers. On each layer cover with beating white eggs, granulated sugar and chopped walnuts.
Fill with manjar and Chantilly cream.