Print
Total:
2 hr 25 min
Prep:
5 min
Inactive:
20 min
Cook:
2 hr
Yield:
8 to 12 servings
Level:
Easy
Total:
2 hr 25 min
Prep:
5 min
Inactive:
20 min
Cook:
2 hr
Yield:
8 to 12 servings
Level:
Easy

Ingredients

  • One 3 1/2-pound beef prime rib roast
  • 1 tablespoon ground mustard
  • 2 teaspoons freshly cracked pepper
  • 2 teaspoons sea salt
  • 1 1/2 cups pearl onions
  • 20 whole mushrooms
  • 10 small potatoes

Directions

Watch how to make this recipe.

Preheat the oven to 475 degrees F. Place the beef in a roasting pan, fat-side up, and rub with the ground mustard, pepper and sea salt. Transfer to the oven to brown for 15 minutes. Lower the oven temperature to 325 degrees F and cook for 1 hour, until the roast begins to drip. Add the pearl onions, mushrooms and potatoes to the roasting pan and continue to cook until a meat thermometer inserted into the thickest part of the beef registers 135 to 140 degrees F. Transfer to a cutting board to rest. Slice the beef and serve on a large platter with the roasted onions, mushrooms and potatoes.

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