- Preheat the oven to gas mark 4-5, 180°C, 350°F. Weigh the joint and calculate the cooking time using the timings: Rare - 20 minutes per 450g/½kg (1lb) plus 20 minutes. Medium - 25 minutes per 450g/½kg (1lb) plus 25 minutes. Well done - 30 minutes per 450g/½kg (1lb) plus 30 minutes.
- Place joint on a rack in a roasting tin. Mix together the damson jam and 5 spice. Twenty minutes before the end of cooking brush or spoon over the joint - repeat this 5 minutes later.
- Open roast in a preheated oven.
- Serve thick slices of beef with roasted beetroot and potatoes and use the meat juices to drizzle.