Roast Beef with Yorkshire Pudding and Horseradish Sauce

• 5 lb sirloin of beef
• Black pepper

• 4 oz. plain flou

Put the beef into a roasting tin without any fat. Sprinkle beef with pepper. Roast in a hot oven, 425°F, 220ଌ, gas mark 7 for fifteen minutes. Lower heat to 375°F, 190°C, gas mark 5 for the rest of cooking time, allowing fifteen minutes to the pound. Baste meat frequently with pan juices. Beef should be served underdone, and should be transferred to a heated dish and left to rest for fifteen mi