Oven cook from chilled. If freezing at home, please defrost thoroughly before cooking. Before Cooking: Remove all packaging. Preheat oven 190°C / Fan 170°C / Gas 5. Rub 15ml vegetable oil into lamb and season with 1 teaspoon salt and pepper. During Cooking: Place lamb into a shallow roasting tin. Cook for 25 minutes per 500g. After Cooking: Allow to rest for 15 minutes loosely covered with foil before carving. Check food is piping hot. All cooking appliances vary. This is a guide only. Ensure product is cooked thoroughly until all juices run clear and there is no raw meat inside. If cooked rare there is small risk that harmful bacteria may be present. Oven cook from chilled 190°C / Fan 170°C / Gas 5 25 mins per 500g