Chop the rosemary.
Put the chops in a dish rub with the olive oil on both sides.
Sprinkle on the rosemary, cover and leave to marinate in the fridge for 30 minutes or longer if you want to prepare ahead.
Take the meat out of the refrigerator 30 minutes before you are ready to cook.
Sprinkle the chops with salt and pepper.
Put the vegetable oil in a pan over a medium to high heat.
Add the chops for 4 -6 minutes each side, making sure that the saddle chops are well seared.
Turn the chops over and cook for a further 4 to 6 minutes.
Use tongs to sear the fat side down for a minute.
Add the butter to the pan and baste the chops.
Transfer the chops to a plate and loosely cover with foil.
Let the meat rest for 5 minutes to allow the juices to distribute before serving.