Bone in prime rib roasts are a little more flavorful than boneless. Choice is a grade of meat and is a step up from bargain grocery store meat. The rib roast should be marked USDA Choice (even though the roast is called 'prime' rib roast.) Prime is the highest USDA grade of meat but is usually only available to restaurants.
Select a rib roast that that weighs 75% as many guests as you are planning to serve. In other words if you will have 10 people for dinner, your rib roast should weigh seven pounds. That allows for leftovers. If you don't want leftovers then plan on a half pound per person. In that case a five pound rib roast would serve 10 people.
Bring the rib roast to room temperature by taking it out of the fridge an hour before roasting. Rub with a mixture of olive oil, freshly chopped herbs, and garlic. Basil, tarragon, and chives is a good combination, so is parsley, thyme and rosemary. If you don't like garlic don't use it.
Preheat the oven to 450 degrees. Place the roast in the oven, fat side up, bone side down. Immediately turn down the heat to 325 degrees. Do NOT open the oven again until the rib roast is nearly done. Follow the chart below for an estimated roasting time based on weight and doneness.
Use a meat thermometer to insure that the rib roast is finished to your degree of doneness. About 30 minutes before you expect the rib roast to be done, insert the meat thermometer into the thickest part of the rib roast without touching any bone. When it reaches within 20 degrees of the wellness temperature you prefer, remove the meat from the oven. The meat will continue to cook for another 15 to 20 minutes after it's out.
Let the rib roast sit for 15 to 20 minutes so the juices are retained within the rib roast
Rare meat reaches an internal temperature of 120 degrees.
Medium rare (dark pink in the middle) reaches about 130 degrees
Medium done (very light pink) 140 degrees
Medium well ( no trace of pink whatever) 150 degrees
Well done (meat is brown throughout) 160 degrees
4 to 5 pounds 60 to 70 minutes to reach 120 degrees F
7 to 8.5 pounds 1 1/2 to 1 3/4 hours to reach 120 degrees F
9 to 10.5 pounds 1 3/4 to 2 1/4 hours to reach 120 degrees F
11 to 13.5 pounds 2 1/4 to 2 3/4 hours to reach 120 degrees F
14 to16 pounds450 deg/325 deg F3 to 3 1/4 hours to reach 120 degrees F
Remove the bones or serve each portion of the rib roast with a bone intact.
Published by Dee Power
Dee is the author of several nonfiction books and a novel. She is considered an expert on the book publishing industry from the author's point of view. View profile
- Beef Recipe for Christmas: Pistachio and Garlic Crusted Prime Rib RoastA mouth watering recipe that is a family favorite.
- How to Cook Prime Rib: Prime Rib Cooking Questions and AnswersMany families will be making a prime rib this Christmas, but will be asking many questions such as baking time for a prime rib, how to cook prime rib in the oven, temperature for cooking prime rib, how to make a frenc...
- How Would a Person Cook Prime Rib on a Grill?Some choose to have side dishes while other needs the prime rib with horse radish and a tasting homemade roll and a meal is made.
- Prime Rib for ChristmasThere's nothing better than Prime Rib cooked to perfection for a Christmas dinner.
- Beef Rib Eye Roast is This the Same as Prime Rib?With the middle section of the beef comes the prime rib. This is not actually the prime meat on a beef. Prime rib can be choice cut or any cut as long as the marbling and the rib section of the beef.
- How to Cook a Standing Rib Roast
- Prime Rib Dinner Menu Idea
- Van Dyken Christmas Roast
- Your Ultimate Christmas Dinner Guide
- Baking Times for a 20lb Prime Rib Roast
- How to Carve a Standing Rib Roast
- Crusting a Prime Rib Roast, the Emperor of Meats


