Mix the mustard, oil, garlic, rosemary leaves, vinegar and black pepper together
Pour this marinade into a large food bag then add the pork chops. Rub together until coated well then seal the bag and marinate in the fridge for around 3 hours
Remove the pork and mix the marinade that's left in the bag with some water, just enough to make it runny
Heat a frying pan or a griddle pan over a medium-high heat and add the pork
Depending on thickness, cook for between 3 - 5 minutes each side, giving a brush with the thinned out marinade often. (I used 8 thinner pork steaks here which needed only 3 minutes each side. A good thick steak will need 5 minutes
Remove from the heat and season with salt, then cover with foil and let rest between 5 - 10 minutes, again depending on thickness, before serving with seasonal vegetables, potatoes, rice etc
