For the airy yeast dough, crumble the yeast and dissolve it in the lukewarm milk while stirring. This works best with the whisk. Then work the flour with sugar, butter, egg, salt and the yeast milk in a bowl to form a soft dough. Knead this into a ball with your hands and cover and let rise for 30 minutes at room temperature.
For the marzipan topping, cut the raw mixture into small pieces and mix them together with eggs and cinnamon to form a smooth mixture.
After rising, the dough must be kneaded again with your hands on a floured worktop before it can be rolled out on a greased baking sheet. Now first spread the marzipan mixture evenly on the floor. Then drape the halved and pitted plums with the inside upwards like a roof tile. Bake the cake in a preheated oven at 180 ° C top / bottom heat for 30 minutes.