A VERY LIGHT but delicious hazelnut cake, and very easy to make! No butter, only 1tsp of flour and made with breadcrumbs, a nice touch. It is my husband's favorite cake and we rediscovered the recipe in his mom's old cookbook. A hit at home and at parties - I've passed on the recipe to many! A variation - fill with chocolate ganache or, for a really quick trick, Nutella, as a VERY THIN LAYER (as the cake is so light) before adding the whipped cream. Sprinkle with cocoa and hazelnuts once done.