Process the flour, cinnamon, salt, sugar, vanilla sugar and butter into sprinkles. Put 2/3 of it in a springform pan lined with baking paper and press down lightly.

Mix the quark, pudding powder, honey and the grated zest of the lemon and spread on the crumble base.

Peel the apples and cut into thin wedges. Drizzle with a little lemon juice and spread on the quark. Cover with the remaining crumbles and bake in the preheated oven at 190 degrees for about 35 - 40 minutes on the middle shelf.