Prime Rib with Garlic Mash (2 Hrs, 10 Mins)

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Savor the rich and succulent flavors of this roasted boneless prime rib, a centerpiece dish that’s perfect for any special occasion or festive gathering.

When paired with creamy garlic mashed potatoes, this meal becomes an epitome of comfort food, offering a delightful blend of textures and flavors.

The prime rib, with its tender and juicy interior beneath a perfectly browned crust, is a true culinary delight, while the garlic-infused mashed potatoes provide a smooth and flavorful complement.

Let’s begin!

Ingredients

Units Scale

For the prime rib:

  • 1 (4-5 pound) boneless prime rib roast
  • 2 tablespoons olive oil
  • 2 tablespoons kosher salt
  • 1 tablespoon black pepper
  • 1 tablespoon garlic powder
  • 1 tablespoon onion powder
  • 1 tablespoon dried thyme
  • 1 tablespoon dried rosemary

For the garlic mash:

  • 3 pounds Yukon Gold potatoes, peeled and quartered
  • 4 cloves garlic, minced
  • 1 cup heavy cream
  • 1/2 cup unsalted butter
  • Salt and pepper to taste

Instructions

  1. Prepare the Prime Rib (10 minutes):
    Let the prime rib sit at room temperature for about 1 hour before cooking. Preheat your oven to 450°F (232°C). Rub the prime rib all over with olive oil. Mix salt, pepper, garlic powder, onion powder, thyme, and rosemary together in a bowl and rub this mixture evenly over the meat.
  2. Roast the Prime Rib (Approx. 90 minutes):
    Place the seasoned prime rib in a roasting pan or another oven-safe pan, fat side up. Roast in the preheated oven for 20 minutes, then reduce the oven temperature to 325°F (163°C). Continue roasting until the desired doneness is reached, about 15 minutes per pound for medium-rare. Use a meat thermometer to check for doneness: 135°F (57°C) for medium-rare.
  3. Rest the Meat (20 minutes):
    Once cooked to your liking, remove the prime rib from the oven. Cover it loosely with foil and let it rest for at least 20 minutes before slicing. This allows the juices to redistribute throughout the meat, ensuring it’s moist and flavorful.
  4. Prepare the Garlic Mashed Potatoes (30 minutes):
    While the prime rib is resting, boil the potatoes in a large pot of salted water until tender, about 20 minutes. In a small saucepan, melt the butter with the garlic and then add the cream, heating until just warm. Drain the potatoes and return them to the pot. Mash the potatoes, adding the garlic-butter-cream mixture gradually until the potatoes are smooth and creamy. Season with salt and pepper to taste.
  5. Serve:
    Slice the rested prime rib and serve alongside the garlic mashed potatoes. You can garnish the potatoes with a bit of chopped parsley or chives for added color and flavor.

Equipment

Notes

This roasted prime rib roast is a luxurious and satisfying meal that’s sure to impress. The key to a perfect prime rib is not overcooking it, so monitoring the temperature closely is crucial.

Pairing the rich meat with the soft, flavorful potatoes creates a harmonious dish that’s as comforting as it is elegant. Add on some of your favorite veggies such as roasted asparagus or carrots for a complete meal and enjoy!

*Please keep in mind that the following nutritional information is based on estimates and can vary depending on the specific brands and ingredients used.

Nutrition

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