Description Contains Nitrates Preheat oven to 170 degrees (fan), place your joint in a roasting pan with a rack. Cover with foil and cook for 25-30 minutes per 500g plus 30 minutes. For the final 30 minutes remove the foil, score the fat in a diamond pattern and cover with a glaze of your choice. Rest for at least 20 minutes before carving ……. Enjoy!