Heat the margarine in a pan and fry the chops rubbed with salt and pepper for 4 minutes on each side. Add mushrooms, meat stock and Madeira and let simmer in a closed pan for 10 minutes.
Arrange the chops on a preheated deep platter and keep them warm.
Stir the cream into the sauce and let the sauce boil down for 5 minutes. Season to taste, add to the chops and serve garnished with chopped parsley.