Grease a springform pan (26 cm Ø). Mix 250 g flour, 150 g sugar, 2 packets of vanilla sugar, salt, nuts and butter with the dough hooks of the hand mixer to form crumbles. Press 2/3 of them into the form as a base. Sprinkle the base with breadcrumbs. Chill the base and remaining crumbles for about 20 minutes. Wash, peel and quarter the apples and remove the core. Cut the quarter in half again. Sprinkle with lemon juice. Cream eggs, 225 g sugar and 2 packets of vanilla sugar. Stir in quark, mascarpone, semolina and 20 g flour. Dab apples dry and spread evenly on the crumble base. Spread the quark mixture on top. Crumble the rest of the crumble by hand and sprinkle over it. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for approx. 1 1/4 hours. Remove the cake, remove from the edge of the springform pan and let it cool in the pan. Dust Mt icing sugar and decorate with mint
Waiting time approx. 12 hours
Tastes best when it can cool down overnight