Cook Time and Temperature:
The length of time to cook prime rib depends on how rare you want the meat.
Start by cooking your prime rib at 500°F for 15 minutes and then lower the oven temperature to 325° F and cook for 10-12 min per pound for rare, or 13-14 min per pound for medium rare, or 14-15 min per pound for medium well.
Ingredients:
1 bone-in prime rib roast (6-8 pounds)
2 tablespoons olive oil
Salt and pepper, to taste
Garlic cloves, optional
Instructions:
Preheat your oven to 500°F (260°C).
Place the prime rib roast on a rack in a roasting pan. Rub the roast with olive oil and season it with salt and pepper. If desired, you can insert garlic cloves into the roast using a paring knife
Place the roasting pan in the oven and roast the prime rib for 15 minutes.
Reduce the oven temperature to 325°F (160°C) and continue to roast the prime rib until it reaches the desired level of doneness. Use a meat thermometer to check the internal temperature of the roast. For medium-rare, the internal temperature should be 135°F (57°C). For medium, it should be 140°F (60°C). For well-done, it should be 150°F (66°C).
Remove the roast from the oven and let it rest for 15-20 minutes before slicing and serving.
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