How to Cook a Standing Rib Roast

Directions

1. 1
   Pat Standing Rib Roast Dry and leave uncovered in fridge for 3 hours or more. (This will help dry out the outer layer.) Then remove from refrigerator. Generously coat the rib roast with olive oil, salt, and pepper.
2. 2
   Place rib roast in a large roasting pan fat side up. Set out 2-3 hours to bring to room temperature.
3. 3
   Preheat oven at 450 degrees. Insert oven meat thermometer probe in the center of the thickest part of the roast.
4. 4
   Place the standing rib roast in the oven and roast for 20 minutes.
5. 5
   Reduce the oven temperature to 350 and continue to cook until the meat thermometer reaches 115 degrees for rare or 120 degrees for medium rare, or 130 degrees for medium. Prime Rib should not be cooked higher than medium.
6. 6
   Remove from oven and let the standing rib roast rest for 20 to 30 minutes. It will continue to cook while resting.After resting, your prime rib should reach 120-129 degrees for rare, 130-134 degrees for medium rare, and 135-144 degrees for medium.
7. 7
   Serve with au jus and creamy horseradish sauce.