Reverse-Sear Prime Rib Roast

Step 1
Season roast generously with kosher salt.

Step 2
Cover loosely with plastic wrap and refrigerate, 8 hours to overnight.

Step 3
Remove roast from the refrigerator and allow to come to room temperature, about 2 hours.

Step 4
Preheat the oven to 200 degrees F (95 degrees C).

Step 5
Mix butter, rosemary, thyme, and black pepper together in a small bowl.

Step 6
Spread butter mixture over roast. Place roast in a large roasting pan.

Step 7
Bake roast in the preheated oven until internal temperature reaches 115 degrees F (46 degrees C) for medium-rare, about 3 1/2 hours. Remove from the oven and tent with aluminum foil; allow to rest, about 20 minutes.

Step 8
Meanwhile, increase the oven temperature to 500 degrees F (260 degrees C).

Step 9
Once the oven has come up to temperature, uncover rested roast and return it to the oven. Bake until well-browned, 6 to 10 minutes. Slice and serve.