To roast a whole joint preheat the oven to 180C, gas 4 and adjust the shelves so that the meat will sit in the centre of the oven. Calculate the cooking time. If you prefer rare beef, cook the joint for 20 minutes per 450g plus 20 minutes, for medium: 25 minutes per 450g plus 25 minutes, or for a well done joint cook for 30 minutes per 450g plus 30 minutes. After cooking allow the fillet to rest for 10 minutes before carving. Try rolling the fillet in herbs and black pepper before roasting. Delicious!