Make a shortcrust pastry from the first ingredients, place in a springform pan and cover with thin apple slices. Process the other ingredients one after the other to form a batter. Spread evenly over the apples.
At 170 ° C approx. 60 min. to bake. Let cool in the mold for at least 10 minutes. (Tip: do not open the oven door too early, otherwise it will collapse.)