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5.0 from 30 votes

Perfect Prime Rib

It may look impressive and complicated, but it's one of the easiest recipes to make! Follow my step-by-step method to make a Perfect Prime Rib roast for any special occasion.

Prep Time
15 mins
Cook Time
3 hrs 15 mins
Additional Time
30 mins
Total Time
3 hrs 50 mins
Servings: 8 servings
Calories: 1691 kcal
Course: Main Course
Cuisine: American

Ingredients

  • 10 pounds Bone-in Prime Rib roast or oven roast (4 ribs for serving 8 people)
  • salt (kosher salt preferred)
  • pepper

Instructions

    Cup of Yum
  1. Remove the roast from the refrigerator several hours before cooking so that it can come to room temperature.
  2. When ready to cook, preheat the oven to 450 degrees.
  3. Generously sprinkle all surfaces with salt and ground black pepper. Place the roast in a heavy roasting pan with the rib bones down. You don’t need a rack with a prime rib as the bones act as the roasting rack.
  4. Cook for 15 minutes, then decrease the temperature to 325 degrees and continue cooking approximately 15 minutes per pound for rare, 17 minutes per pound for medium rare, and 20 minutes per pound for medium. *See more cooking time information in the notes below.*
  5. When desired temperature is reached, remove the roast from the oven, cover the pan with foil and let it rest for 30 minutes before carving.
  6. When ready to serve, cut and remove the twine. Separate the roast from the bones. Slice and serve.

Notes

  • When purchasing prime rib, you should plan on one rib per each two people you'll be serving. Look for a roast with consistent marbling. 
  • Ask the butcher to separate the roast from the bones and tie them back with butcher’s twine. This will make slicing and serving much easier.
  • The cooking time per pound is merely a guideline - measuring internal temperature is critical for a correctly cooked roast. Start checking the internal temperature in the thickest part of the roast about 45 minutes before the estimated end of cooking time. The temperature should read 120-125 for rare, 130-135 for medium-rare, and 140-145 for medium.

Nutrition Information

Serving 1 Calories 1691kcal (85%) Protein 77g (154%) Fat 151g (232%) Saturated Fat 63g (315%) Polyunsaturated Fat 5g Monounsaturated Fat 66g Cholesterol 343mg (114%) Sodium 252mg (11%) Potassium 1253mg (36%) Calcium 43mg (4%) Iron 8mg (44%)

Nutrition Facts

Serving: 8servings

Amount Per Serving

Calories 1691

% Daily Value*

Serving 1
Calories 1691kcal 85%
Protein 77g 154%
Fat 151g 232%
Saturated Fat 63g 315%
Polyunsaturated Fat 5g 29%
Monounsaturated Fat 66g 330%
Cholesterol 343mg 114%
Sodium 252mg 11%
Potassium 1253mg 27%
Calcium 43mg 4%
Iron 8mg 44%

* Percent Daily Values are based on a 2,000 calorie diet.