Mix 75 g marzipan, 25 g sugar, 100 g butter, 150 g flour and 1 egg to a smooth short pastry. Wrap in foil and chill for about 30 minutes. In the meantime melt 50 g butter and let it cool down again.
Chop 50 g marzipan. Mix with 100 g flour and 50 g sugar. Stir in melted butter loosely with the dough hooks. Chill the crumbles. Wash, clean and stone the cherries. Mix cream cheese, 2 eggs and 75 g sugar.
Roll out the shortcrust pastry on a lightly floured work surface and place in a greased tart tin (26 cm Ø). Press the edges, prick the base several times with a fork.
Spread half the cream cheese mixture, cherries, the rest of the cream cheese mixture and crumbles on top. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 40-45 minutes. Serve dusted with icing sugar.