Question: do you cook a prime rib roast covered or uncovered?
Answer: Preheat the oven to 200°F (95°C). Place the prime rib on a roasting pan bone side down (fat side up). ... 10 minutes before serving, pop the prime rib into the oven, uncovered, and cook it until it's nice and brown, and crisp on the outside, about 6-10 minutes.