The BEST Boneless Prime Rib Roast

Step 1

Place an unwrapped prime rib on a tray. Generously salt all over and refrigerate overnight to air-dry the outside of the prime rib.

Step 2

Bring the prime rib to room temperature before roasting. It'll take about 2 hours out on the counter.

Step 3

Mix olive oil, Montreal steak seasoning, sugar, Worcestershire sauce and garlic until smooth. Then evenly spread the mixture all over the roast.

Step 4

Preheat the oven to 200°F (95°C).

Step 5

Place the prime rib on a roasting pan fat side up. (I use this roaster, and highly recommend it.) Roast the meat in the oven until the center of the roast reads 120°F (50°C) on a meat thermometer for medium-rare, or 130°F (55°C) for medium doneness, about 3.5-4 hours. (This instant thermometer is my favorite! Super quick and reliable!)

Step 6

Remove the prime rib from the oven, cover with a foil and rest for about 30 minutes.

Step 7

Meanwhile, increase the oven temperature to 500°F (260°C).

Step 8

10 minutes before serving, pop the prime rib into the oven, uncovered, and cook it until it’s nice and brown, and crisp on the outside, about 6-10 minutes. Rest for 10-15 minutes before slicing and serving.