Preheat the oven to 175C/350C (fan).
Place the pork chops on a plate and sprinkle on the salt and pepper.
Heat the oil in a large pan over a high heat.
Place the pork chops in the pan and cook for about 3 minutes on each side, until golden.
Transfer the pork to a baking tray, and place in the oven for 5-6 minutes, until the pork is no longer pink in the middle.
Meanwhile, turn the heat for the pan down to medium and add the chicken stock to the pan. Heat for 3-4 minutes, giving the stock a stir, to deglaze the pan.
Stir in the mustard, then stir in the cream and Worcestershire sauce.
Bring to the boil, then simmer gently for 5 minutes, until the sauce thickens slightly.
When the pork is ready, remove from the oven and place on a warm plate to rest for 3-4 minutes.
Divide the rested pork between plates and pour over the sauce.
Sprinkle with parsley and black pepper and serve.