Instant Pot Prime Rib Roast

instant pot prime rib roast
Diana Rattray
  • Total: 20 mins
  • Prep: 5 mins
  • Cook: 15 mins
  • Keep Warm: 40 mins
  • Yield: 8 servings

This succulent boneless prime rib roast—along with gravy—is cooked in record time in an Instant Pot. Ready in just over an hour, it's the perfect solution for home cooks with a busy schedule. Although coming from the same cut, prime rib roast and ribeye (or simply prime rib) are slightly different. The prime rib is the whole cut, with bones or not, and the ribeye is the resulting steak-looking piece that is cut before the meat is cooked. Both cuts are wonderfully delicious and both are great cuts, but are only truly prime, as designated by the USDA, if the package says so.

This tender, flavorful Instant Pot prime rib is an excellent choice for special occasions or holiday meals, as it serves 8 generous portions. Serve it with gravy, roasted garlic mashed potatoes, and steamed green beans.

Ingredients

  • 4 pounds beef prime rib roast (boneless)
  • Kosher salt
  • Black pepper (coarsely ground)
  • 1 cup beef stock (unsalted)
  • 1/3 cup dry red wine (Cabernet sauvignon, merlot, shiraz, or pinot noir)
  • 2 tablespoons vegetable oil
  • Optional: sprigs of fresh herbs (rosemary, thyme, dill, basil, or parsley)
  • 3 tablespoons all-purpose flour

Steps to Make It

  1. Gather the ingredients.

    instant pot prime rib roast
    Diana Rattray
  2. Season the roast on all sides with kosher salt and coarsely ground black pepper.

    season the roast
    Diana Rattray
  3. Place the trivet in the Instant Pot. Add the beef stock and red wine, or simply 1/3 cup more beef broth if you don't cook with wine. If desired, toss a few sprigs of fresh herbs into the pot.

    beef stock and red wine
    Diana Rattray
  4. Place the roast on the trivet. Lock the lid in place and ensure the vent is in the "sealing" position. Choose the manual setting, low pressure, and set the time for 5 minutes.

    instant pot prime rib
    Diana Rattray
  5. When the time is up, do not remove the lid or release the pressure. Leave the roast in the pot for 35 more minutes. The pot automatically switches its mode to the "keep warm" setting.

  6. Once the 35 minutes have passed open the pot and measure the inner temperature of the meat at the thickest part. It should register approximately 115 F. If the temperature is still too low, put the lid back on and leave it on warm for 5 to 10 minutes longer and then check it again. By searing, the temperature will increase. If your roast is smaller than a 4-pound cut, check the temperature five to 10 minutes earlier.

  7. Remove the roast to a plate. Strain the liquids into a cup and set aside.

  8. Remove the trivet from the pot, and select the highest sauté setting in the pot. Add 2 tablespoons of vegetable oil to the pot. Place the prime rib roast back and sear it until brown on all sides, approximately 10 minutes. Alternatively, brown the roast on a heavy skillet on the stovetop. Remove the roast to a platter, tent with foil and let it rest for 15 minutes.

    instant pot prime rib sear
    Diana Rattray
  9. With the pot still on the sauteé setting, add 3 tablespoons of flour to the drippings. Continue to cook the roux mixture for 2 minutes. Gradually add the strained liquids to the roux and continue cooking until the gravy is smooth and thickened. Taste for salt and adjust the seasonings.

    gravy for prime rib
    Diana Rattray
  10. Transfer the gravy to a bowl and serve it alongside the roast.

    instant pot prime rib roast
    Diana Rattray
  11. Carve the roast and enjoy your meal!

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