Grease a fat pan (approx. 32 x 39 cm; at least 3.5 cm deep) and dust with flour. Drain the cherries well. Coarsely grate marzipan
Mix flour, baking powder, sugar, and 1 pinch of salt in a mixing bowl. Add butter in flakes, marzipan flakes and 2 eggs. Mix everything first with the dough hooks of the hand mixer and then briefly with your hands to make crumbles. Spread 2/3 of the crumbles as a base on the fat pan and press them on. Spread the cherries on top
Mix sour cream, poppy seed bake, 6 eggs and pudding powder. Spread on the cherries and smooth
Sprinkle the rest of the crumble on top, rubbing or pulling it between your fingers. Bake in the preheated oven (electric cooker: 175 °C/circulating air: 150 °C/gas: level 2) for approx. 40 minutes. Turn the oven up (electric oven: 200 °C/circulating air: 175 °C/gas: level 3), continue baking for approx. 20 minutes. Let them cool down on the fat pan