Roughly chop the almonds. Knead butter, 250 g sugar, 450 g flour, almonds, cinnamon and 2 tablespoons water first with the dough hooks of the hand mixer, then with your hands to crumbles.
Wash the cherries, drain well and stone them. Mix cherries, 2 tablespoons sugar, jam and 2 tablespoons flour.
Spread about 2/3 of the crumbles as a base into a greased tart tin (28 cm Ø) with lift-off base and press down evenly. In a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see
manufacturer) prebake for about 10 minutes. Remove, spread the cherry mixture on the base and sprinkle the remaining crumbles over it, continue baking at the same temperature for approx. 40 minutes.
Remove from the oven and let it cool on a cake rack for about 30 minutes. Carefully remove from the mould, place on a plate and allow to cool. Dust with icing sugar before serving.