If you have left out hyphens, Excel does include automatic cell formatting options, allowing you to uniformly add hyphens to a selection of phone numbers, social security numbers or anything else requiring the dash.
1 Allow roast to stand at room temperature for at least 1 hour. 2  Preheat the oven to 375 degrees F (190 degrees C). 3  Combine the salt, pepper and garlic powder in a small cup. 4  Place the roast on a rack in a roasting pan so that the fatty side is up and the rib side is on the bottom. 5  Rub the seasoning onto the roast. Preheat the oven to 375 degrees F (190 degrees C). 2  Combine the salt, pepper and garlic powder in a small cup. 3  Place the roast on a rack in a roasting pan so that the fatty side is up and the rib side is on the bottom. 4  Rub the seasoning onto the roast.
Sear the rib roast (prime rib) for 15 minutes at the higher oven temperature (450 degrees F.), then turn the oven to the lower temperature (325 degrees F.) for the rest of the cooking time. Every 1/2 hour, baste the cut ends of the roast with the fat accumulated in the roasting pan. Do Not Cover the roast.esidual Heat or Carry-Over Cooking: Remember, the rib roast will continue to cook as it sets. The internal temperature will rise to 125 degrees F. to 130 degrees F. (medium rare) in approximately 15 to 20 minutes. If allowed to rest as long as an hour, the internal temperature will rise even higher.