you cook a prime rib roast at 500 degrees for 5-6 minutes per pound, then turn the oven off and leave the door closed for two hours. At that point, the temperature of the prime rib will be perfect ...
That’s a cook's goal when preparing a standing beef rib roast, also known as prime rib, for the holidays ... Bone-in roasts: Figure about 1 pound per person if that is your main dish.