For the crumbles, chop the almonds roughly. Dice the marzipan. Mix flour, salt, vanillin sugar and sugar in a large bowl. Add butter in flakes, egg yolk, almonds and marzipan and knead into crumbles with your hands.
Wash, clean and halve the strawberries. Put the strawberries in a large casserole dish. Sprinkle with brown sugar and spread crumbles evenly on top.
Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) for 35-40 minutes. Remove from oven and dust with icing sugar.