Standing Prime Rib Roast with Potatoes

Standing Rib Roast

Christmas roast with Yorkshire pudding.

Lesya Dolyuk/Shutterstock


1 standing rib roast, 5 to 6 pounds
2 tablespoons kosher salt
2 tablespoons, fresh ground pepper
2 tablespoons unsalted butter
Optional: 2 tablespoons each of fresh, chopped thyme and rosemary
1 tablespoon olive oil
1 sweet onion, peeled and cut into narrow wedges
4 to 6 russet potatoes, washed and quartered


If you have time, salt your prime rib the night before. Pre-salting helps the roast release some moisture. Using a sharp knife, cut 1-inch crosshatch pattern across the top. Massage kosher salt all over the meat and into the crosshatch. Put in the fridge uncovered overnight (up to 96 hours).

  • Remove the roast from the refrigerator 2 or 3 hours before cooking.
  • Preheat the oven to 450 degrees F.  Make room for the roast in the oven by adjusting the oven rack to lower-middle position if needed.
  • Extra Tip: Rub butter on the cut ends of the roast.
  • Rub the meat with olive oil. 
  • Then coat the oil with pepper. Or, we love a pepper/herb mixture with rosmary and herb.  Press the herbs into the meat to adhere.
  • Boil potatoes in a large pot of salted water until fork tender, about 10 minutes. Drain. Peel, and halve each potato crosswise. 
  • Place the roast with rib bones down into a roasting pan into the oven. Insert an oven-safe meat thermometer into the center of the roast, not touching any bone.
  • Brown the roast at a 450°F temperature in the oven for 20 minutes, or until the roast is nicely darkened.
  • Lower heat to 350 degrees and continue to roast, basting every 15 minutes with pan juices, for 1 hour more.
  • After an hour, add the potatoes. Toss to coat. 
  • Continue roasting about 45 minutes more, until the thickest part of roast registers 130 degrees on an instant-read thermometer (avoiding the bone) for medium-rare. Or, 140 degrees for medium.
    (The total cooking time should be about 2 hours.)
  • Transfer roast to a cutting board (keep fat and pan juices in roasting pan for Yorkshire pudding) and let rest for 15 to 20 minutes. By giving the roast time to rest, the meat will be juicier and tastier. 
  • To carve, cut between each rib, then cut each slice into desired portions. Serve with horseradish cream if desired.


Makes 6 to 8 servings.

Reader Comments

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Nowhere in the instructions does it say what to do with the sliced onion.

Elli, where does it say not

Elli, where does it say not to open the door? You're thinking of a different roast.

prime rib roast

If your not suppose to open up the door,how can you baste every 15 min.?

rubbing oil over roast

first you say to rub butter on the ends of the roast the top has fat for cooking where are you supposed to rub oil ?