Peel the apples, remove the core and cut the pulp into cubes. Beat the schnitzel, season with salt and pepper and brush with mustard. Preheat the oven to 150 ° C (fan oven 130 ° C).
Put the flour on a plate. Heat the clarified butter in a pan. Turn the schnitzel in the flour and fry in the hot fat for about 3 minutes on each side. Keep the schnitzel warm.
Mix the marjoram with the cream. Put the apple cubes in the pan and pour in the cream. Add the schnitzel and stew in the oven for about 30 minutes.