Fire up the wood burning oven and get it up to around 425°F/210°C
Picture . Season the beef with salt and pepper, put in a roasting, cover with foil and put in the oven. Timing is difficult in an oven like this, but wil probably be around 45 to 60 minutes taking the foil off half way, but you will need to check with a carving fork. In a conventional oven, do not cover with foil and cook for 15 minutes per lb/500gms plus 15 minutes.