Season the meat with good sea salt, olive oil and pepper. In a heavy duty pan on high heat, or a hot BBQ, cook the meat for 3 mins each side.
Add butter and fresh thyme to the top of the meat and finish cooking in the oven. After a few mins remove and baste the meat with the thyme and butter and return to the oven. Repeat 2 or 3 more times during the cooking.
The best way to tell if your meat is cooked is with a meat thermometer. 60-61 degrees is medium rare and perfect. It will take around 20 mins in an oven at 150 degrees depending on how thick the meat is. Rest the meat for at least 15 mins, remove bone and slice. Top with chive flowers or chives and some juices from the pan.
Cook whole garlic heads in the oven at 150 degrees with olive oil for about 45 mins. Remove from their shells and serve with the cooked meat.