

1. Heat oven to 180C/fan 160C/gas 4. Chop the rosemary and garlic together with 1 tablespoon sea salt. Rub the mixture all over the meat, then put it back on the bone in its original position. Tie with string to secure.
2. Put the loin in a roasting tin and drizzle with olive oil. Roast for 1.5-2 hours, turning the meat from time to time. Add 3 tablespoons water to loosen the juice while roasting.
3. Remove the string, cut loin into thick slices and serve with the concentrated juices from the pan.