Melt and pour into small bowl.
Yellow Mustard powder (2 tbp)
Black Pepper (1 tsp ground)
Salt (½ tsp)
Cayenne pepper (¼ tsp)
Add to butter & mix until a smooth paste is formed.
Beef (2 to 3 kg forerib on the bone)
Spread mixture evenly over the beef except on the exposed bones.
Leave at room temperature for 1 to 3 hours.
Preheat oven to 180°C.
Place beef in oven on rack over deep tray just large enough to catch all the fat.
Roast for 40 minutes per kg. plus 20 minutes.
Yorkshire Pudding batter
90 minutes before the end of the roasting period pour batter into tray.
Serve beef sliced with a portion of the pudding.
Serve with roast potatoes and vegetables of your choice.