For the curd cake, pre-bake the short pastry base at 150 °C for a few minutes. Beat the egg whites until stiff. Stir together curd cheese, sugar, egg yolks, milk, butter, pudding powder, flour and lemon juice/abrasive. Fold in egg whites.
Spread the curd mixture on the short pastry base and bake the curd cake for 1 hour at 150 degrees and one hour at 130 degrees.