Mix the butter, mascarpone, sugar, vanilla sugar and eggs together until frothy. Mix and stir in the flour, baking powder and almonds, add the milk and stir everything well. The dough shouldn`t be too tough, if it is, you can add a little milk.
Put 2/3 of the dough in a greased dish. Now stir the nut nougat cream and cocoa into the rest of the batter. Spread the dark dough on the light dough and pull through with a fork so that the cake gets a marbling. Bake at 190 ° C for about 60 minutes.