Process the first 4 ingredients into a crumbly dough. Put 2/3 of the crumbly dough on a greased springform pan. Peel the apples and put them in slices on the bottom. Then sprinkle a mixture of cinnamon and sugar (last two ingredients) over the apples.
Prepare the filling from margarine, sugar, eggs, quark and pudding powder or cornstarch. To do this, stir the ingredients finely with a mixer. Then pour the filling over the apples. Then pour the rest of the crumble dough over the filling. Finally, a little cinnamon-sugar mixture can be sprinkled on. Bake the cake at around 200 degrees for at least 45 minutes.