Name: Boneless Prime Rib Roast
Cook time: 3 h
Total time: 3 h
Yield: 9 Servings
Cuisine: Other
Ingredients: 1 boneless prime rib roast; salt; black pepper; 2 tablespoons Dijon mustard; 2 teaspoons prepared horseradish; 1 tsp garlic powder; 1 tsp dried thyme; 0.5 tsp dried rosemary; 0.5 tsp onion powder

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Boneless Prime Rib Roast

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Ingredients

Warning0 allergens identified

Instructions

Season the prime rib liberally on all sides with salt and black pepper.

Line a roasting pan with heavy-duty aluminum foil and position a roasting rack inside of it.

Transfer the prime rib fat side up to the middle of the roasting rack. Tent the prime rib loosely with foil, and allow it to stand at room temperature for 1-2 hours.

Preheat the oven to 500°F.

Place the Dijon mustard, horseradish, garlic powder, thyme, rosemary, and onion powder into a small bowl. Stir to combine.

Remove the foil tent from the roast. Using the back of a spoon, spread the mustard mixture over the top surface of the meat.

Roast the prime rib on middle rack of oven for 20 minutes.

Reduce the oven temperature to 325°F. Continue roasting the prime rib until the meat reaches an internal temperature of 120-145°F, depending on desired doneness, 75-100 minutes.

Check to see that prime rib is done. Remove from oven or add time as needed.

Allow the prime rib to rest on the rack for 15-30 minutes, then transfer to a cutting board and untie. Carve and serve immediately. Refrigerate leftovers up to 5 days or freeze up to 6 months.

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Nutrition

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Tips & Tricks (5)

Dry Brine Your Roast 🧂
Apply salt and seasonings 24 hours before cooking to allow deep penetration and create a flavorful crust. This dry-brining method breaks down proteins and enhances the meat's natural juices.
Bloom Your Dried Herbs 🌿
Toast the rosemary and thyme in a dry pan for 30 seconds before mixing into your spice rub to intensify their essential oils and depth of flavor.
Reverse Sear Technique 🔥
Roast at low temperature (275°F) until 10°F below target temperature, then sear in a screaming hot pan for a perfect crust while maintaining a perfectly even, rosy interior.
Horseradish-Mustard Balance ⚖️
Mix prepared horseradish and Dijon mustard in equal parts to create a complementary crust that won't overpower the prime rib's delicate beef flavor.
Strategic Resting Period ⏱️
Rest the finished roast for 15-20 minutes loosely tented with foil, allowing carryover cooking to finish and muscle fibers to relax for maximum juiciness when slicing.