For the first filling, pour the rum over the raisins and let stand. Then mix nuts, sugar, cinnamon and stir with the milk to a spreadable mass.
For the second filling, also mix all the ingredients to a spreadable mass.
For the dampfl, mix yeast, sugar and lukewarm milk. For the dough, put flour with salt and lemon zest in a bowl.
Melt the butter, add the milk and stir in the sugar and yolks. Knead this mixture with the risen dampfl and the flour mixture to form a dough. Let it rise for about half an hour.
Then roll out the dough to a rectangle about 4 mm thick.
Spread the nut filling evenly on it and sprinkle the raisins soaked in rum on top. Spread the second filling on top and roll up.
Place the roll in a greased baking pan and allow to rise again.
Bake at approx. 170 °C for approx. 80-90 minutes.