Season the prime rib with salt and pepper and place on a rimmed baking sheet. Place, uncovered, in the refrigerator overnight. Remove the roast from the refrigerator 2 or 3 hours before cooking.

Roast the Prime Rib: Place the roasting pan in the oven and immediately lower the temperature to 325°F. Cook for 13 minutes per pound, or until the internal temperature reaches 125°F for medium ...

If your rib is 5.5pounds you will need to cook the rib at 500 for27 1/2 minutes. If it is 10 pounds, you will need to cook it 50 minutes. Rub the butter herb mixture generously on all sides of the ...