Softened butter with the sugar mix to become fluffy. Were added one by one, 6 yolk. Add the flour with the baking powder. It is well kneaded and divided into 3 parts. One part is spread in a greased pan with a diameter of 30-40 cm. The other two parts are put in the freezer to firm, as one put in Cocoa. Until cool over the dough in the pan put half of jam and the walnuts. Egg whites are broken down into hard snow 6 tbsp sugar. On the walnuts of large-scale grate grater white part of the dough on it spread beaten whites and sprinkle half of the walnuts. Top Grate the brown part of the dough. The first 10 minutes, bake in a hot oven, then reduce to low mode.