Prep: 1 hour
Total: 3-4 hours
kosher salt and freshly ground black pepper, to taste
7 bone whole prime rib (about 12 pounds|6 kg)
1. Rub the prime rib generously with salt and pepper and leave it at room temperature for at least 1 hour.
2. Heat the oven to 450°F.
3. Place the prime rib on a rack in a large roasting pan and roast for 10 minutes. Turn the oven down to 300°F and roast the prime rib until medium-rare, about 13 to 15 minutes per pound, or until a thermometer inserted into the thickest part of the meat reaches 110°F. Remove the prime rib from the oven and transfer to a cutting board. Let it rest at least 45 minutes to an hour before carving.