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.
4. Sear the prime rib at this temperature for 15 minutes. Then turn the oven to 325Â°F (162Â°C) 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.. Sear the prime rib at this temperature for 15 minutes. Then turn the oven to 325Â°F (162Â°C) 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.