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Fool-Proof Oven Roasted Prime Rib with Garlic Herb Butter

Close-up of thick slices of medium-rare prime rib recipe roast showing a crusty herb rub and pink interior.

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Follow this simple method to cook a juicy, tender prime rib roast with a flavorful herb crust. This recipe guarantees a perfectly cooked medium-rare result for your special occasion dinner.

Ingredients

Scale
  • 1 (5-7 lb) bone-in prime rib roast, tied
  • 1/4 cup softened butter
  • 4 cloves garlic, minced
  • 1 tablespoon fresh rosemary, chopped
  • 1 tablespoon fresh thyme leaves
  • 2 teaspoons coarse sea salt
  • 1 teaspoon black pepper
  • 1 tablespoon Dijon mustard

Instructions

  1. Remove the prime rib roast from the refrigerator 2 hours before cooking to allow it to come to room temperature. Preheat your oven to 500 degrees Fahrenheit.
  2. In a small bowl, mix the softened butter, minced garlic, rosemary, thyme, salt, and pepper to create the herb butter rub.
  3. Pat the roast dry with paper towels. Rub the Dijon mustard evenly over the entire surface of the roast.
  4. Press the garlic herb butter mixture firmly onto the roast, covering all sides.
  5. Place the roast, fat-side up, in a roasting pan fitted with a rack.
  6. Roast at 500 degrees Fahrenheit for exactly 15 minutes.
  7. Reduce the oven temperature to 325 degrees Fahrenheit. Continue roasting until the internal temperature reaches 125 degrees Fahrenheit for medium-rare (about 13-15 minutes per pound total cooking time). Use a meat thermometer inserted into the thickest part of the roast, avoiding the bone.
  8. Remove the roast from the oven when it hits 125 degrees Fahrenheit. Tent it loosely with foil.
  9. Let the roast rest for 20 minutes before slicing against the grain. The internal temperature will rise to about 130-135 degrees Fahrenheit (medium-rare).
  10. Slice and serve immediately.

Notes

  • For a bone-in roast, ask your butcher to ‘French’ the bones for easier carving later.
  • If you prefer medium, pull the roast when the thermometer reads 130 degrees Fahrenheit, resting to 135-140 degrees Fahrenheit.
  • Use the drippings in the roasting pan to make a simple pan gravy or au jus.

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