Spray the pot of a slow cooker with nonstick cooking spray and add the roast to the pot. Add the beef broth and season with ...
Refrigerate the beef and jus separately for up to 4 days. Beef bones can be found in the freezer section of well-stocked supermarkets and at butcher shops; alternatives include neck bones or oxtails.
Roast for 23 minutes for medium-rare (only 20 minutes if it is a long, thin piece). When the beef is cooked, remove from the oven, cover with aluminium foil and leave to rest for 15 minutes.