Knead a shortcrust pastry from flour + baking powder, butter, sugar, egg, salt and lemon, press it into a prepared 28-inch springform pan, pull up an approx. 3 cm high rim and then refrigerate.
Prepare a pudding from milk and pudding powder and mix well with curd cheese, lemon and sugar and then spread on the shortcrust pastry - place the peaches cut into wedges close together and finally top with the crumble - bake in a preheated oven at 160 ° convection for approx. 35 min.