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Slow-Cooked Prime Rib Roast


Learn how to make the perfect prime rib with this Slow-Cooked Prime Rib Roast. It's tender and tasty, and this recipe makes it look so easy!

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  • One One (6- to 20-pound) Prime Rib
  • Oil
  • Salt
  • Pepper
  • 1/2 cup 1/2 cup beef broth


Servings 6
Preparation time 10mins
Cooking time 1880mins
Adapted from


Step 1

Age the beef in the refrigerator by leaving it uncovered on a wire rack over a large pan to catch any drippings for at least a day and no more than seven days. When you are ready to cook the beef, trim off any dried pieces after the aging. It is common for a roast to lose about 10% to 15% of its weight during a week of aging.

Take the rib roast out of the refrigerator and let it sit on the counter for a couple hours to raise the roast temperature to near room temperature.

Preheat oven to 200°F.

To help cook the roast evenly, we'll need to tie the roast. Using kitchen twine, tie the roast parallel to the rib bones at least at each end. I usually tie between each pair of ribs. Heat the roasting pan or a separate pan on the stove until hot with a little oil. Place the roast on the pan and sear for three minutes on each side.

Remove from heat and season heavily with salt and pepper. Place on the grill of your roasting pan or on a wire rack. Now stick the probe of your thermometer into the roast so that the probe is approximately in the middle of the roast (and not touching a bone). Position the pan on an oven rack in the lowest position.

Set your thermometer for 130°F for a medium-rare roast (125°F for rare; 145°F for medium; any higher and it's overdone). When the roast is done (about 45 minutes per pound up to about 5 pounds - anything larger takes roughly 4 to 5 hours), remove from oven, set the roast aside, and let it sit to redistribute juices for at least 20 minutes. This is a good time to make a jus from the drippings of the roast.

Pour off any extra grease that's collected in the pan. You can save this to make Yorkshire pudding if you wish. Now deglaze the pan by pouring in 1/2 cup beef broth and bring to a boil. After you've scraped off the bottom of your pan and mixed it into the jus, season with salt and pepper. Simple.

When slicing the roast, first cut the rib bones out and then lie the roast on the cut side to carve large slices off the roast.

When properly roasted, the medium-rare pink is uniform to the edges of the roast, giving the diner the maximum amount of tender, juicy beef per slice.

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