Preheat the oven to 170 degrees hot air - grease the baking pan with butter and flour with flour if necessary.
Mix the marzipan and milk with a hand blender to a creamy mass. (Possibly add a little milk if the mixture is too thick). Whip the whipped cream / whipped cream until it is just firm (do not beat completely stiff).
Mix the sugar, vanilla sugar, a pinch of salt and 2 whole eggs until frothy, gradually stir in the 3 egg yolks. Add the amaretto and the creamy marzipan.
Then fold in the whipped cream into this mass, then loosely mix in the stiffly beaten egg whites of 3 egg whites and the sifted flour mixed with baking powder with a wooden spoon.
Sieve the cocoa into 1/3 of the mixture and mix in.
Then fill the light dough into the baking pan and pour the dark dough over it, making a spiral pattern with a fork.
Bake the Gugelhupf at 170 degrees hot air for about 50 minutes.