How long to bake a 11 pound standing rib roast?

the best way to cook a standing rib roast is to pre-heat the oven to 500 degrees. Place the seasoned roast in the oven. After one hour turn heat off. DO NOT OPEN door. (Advise everyone else to leave the oven alone as well!!!!) After 1 hour 45 minutes remove roast and check the temperature, using a standard meat thermometer. The roast should be between 140 and 160 degrees depending on doneness desired. If you think the meat is too rare, then heat oven to 300 and roast another 10- 20 minutes until the meat is the desired level of doneness. Remember let the roast sit before carving. The roast continues to cook while sitting.