Prime Rib Roast is surprisingly affordable and incredibly easy to make!
Prime Rib is my mother’s speciality, much to my husband’s chagrin as he’s not really a red meat eater. But I love it.
My Prime Rib Roast recipe is super easy! And while it sits in the oven you can make up some great side dishes, like mashed potatoes and roasted brussel sprouts. And don’t forget, holiday or not, a great prime rib deserves a great desert, like caramel cheesecake.
Prime Rib Ingredients:
- Rib Roast – Mine was 6.5 pounds, you can get it with the bones in or out, doesn’t matter.
- Onion Soup Mix – Soup mixes are such a convenient time hack!
How do you make Prime Rib?
First, place your roast rib side down (fat side up) on a foil lined roasting pan. Remove any strings.
Next, rub onion soup mix over beef.
Then, for a roast that is rare in the center and slightly pink toward the outside, roast your prime rib uncovered at 500 degrees for 5 minutes per pound of meat, plus 5 more minutes.
Finally, then turn the oven off and leave the roast for two hours. DO NOT OPEN THE OVEN.
That’s it! Carve and enjoy your deliciously moist prime rib roast.
What is a Prime Rib Roast?
A Prime Rib Roast is sometimes called a Standing Rib Roast or a Beef Bone-in Roast; it is from the back upper rib portion of the steer and may contain anywhere from 2 to 9 ribs. Here are some answers to your most frequently asked questions about Prime Rib!
Is Prime Rib and Ribeye the same?
Prime Rib and Ribeye are not the same. Although both the ribeye and the prime rib come from the same part of the animal, the steak must be cut before cooking to be considered a ribeye.
How much does a 3 rib Prime Rib weigh?
A 3 rib Prime Rib will usually weigh 6-7 pounds. You can buy a standing rib roast, or Prime Rib, in different bone quantities, depending on how many people will be at your house for dinner.
How much Prime Rib should I buy?
You should be about a pound per person when choosing the size of your Prime Rib.
Preparing Prime Rib
Prime Rib is surprisingly easy to make, and makes your dinner a special occasion!
How long can I keep a Prime Rib in the refrigerator?
A Prime Rib can be kept in the refrigerator before cooking for 3 to 5 days. After cooking, the meat will be good for 3 to 4 days stored in containers in the fridge.
Can I freeze a Prime Rib?
You can freeze a Prime Rib uncooked for 6-12 months and still keep good quality. If you’re picking yours up at a butcher, ask them to cryovac or freezer-pack the roast, as the key to good freezing is getting as much air out of the package as possible.
Is Prime Rib raw?
Prime Rib is not served raw. Because Prime Rib is best served rare to medium rare, some people think it’s raw as the meat stays a pink color when cooked properly.
How do you carve a Prime Rib?
Carving a Prime Rib is actually very easy!
First, let it rest for 10 – 15 minutes so that the juices settle. Assuming you’re right handed, hold the roast so the bones are poking up on the left side. Hold onto those bones and slide your carving knife down along the inside rack of the bones.
Lay the roast flat and pull the bones up and left (like a hinge), then cut below the bones to remove them. This will leave you with a nice piece of bone free meat!
Cut some thin, even slices for your guests, leaving the fat on, as some folks like that creamy, fatty goodness.
Don’t cut what you don’t need! Leaving the rest of the roast intact will keep it moist.
How do you reheat Prime Rib in the oven?
You can reheat Prime Rib in the oven, but to maintain that beautiful pink color, you will need to go low and slow.
Preheat your oven to 300 degrees F. Put the leftovers in a pan and cover with a foil after adding a little of the meat juices (or beef stock if you are sopped up all those yummy juices the day before).
Cook for 20 – 30 minutes, depending on the thickness of your leftovers.
How do you reheat Prime Rib in the microwave?
You can reheat Prime Rib in the microwave, but it will probably lose it’s pink color and some tenderness. I get it; sometimes you just can’t wait!
Reheat on high for 30 seconds, then check the temperature; repeat in 30 second intervals until it’s where you want it. (FYI–FDA says aim for 160 degrees F).
Why do you serve horseradish with Prime Rib?
You serve horseradish with Prime Rib as a time honored tradition.
It’s thought that the horseradish tempers the rich fattiness of the meat, and, according to culinary tradition, may stimulate gastric juices for better digestion. (Goody, that means I can eat more, amiright?)
Can I give Prime Rib bones to my dog?
You should not give the Prime Rib bones to your dog (sorry, pooch!) as rib bones are more likely to split, which can lead to choking or worse.
Prime Rib Tricks and Tips
Prime Rib looks and tastes so amazing! It looks like you’ve spent hours and tons of money to make it happen, but check out these tips!
How much does Prime Rib cost?
Check with your butcher the day after any big holiday for *amazing* savings. I got my Prime Rib for half-off! Freeze that sucker and you are good to go!
What can I substitute for the onion mix?
Want to raid the pantry instead? Make your own by combining minced onion flakes, beef bouillon powder, onion powder, parsley flakes, ground celery seeds, and a pinch each of black pepper, sweet paprika, and salt.
What to Serve with Prime Rib
A special meal, even if it’s just Thursday night, deserves some delicious sides. Here’s some links to some of my favorites!
More like Prime Rib
Beef is a standard in our house, but not so often that it becomes old hat. When I do serve beef, I like to make it the centerpiece. Check out these links and see if you love them as much as I do!
Prime Rib Making Tools
- Santuko knife – My favorite knife for cutting vegetables! This knife is the perfect size and shape, handles great, and is super reasonably priced. Also, I just love that it’s fun and colorful!
- Knife sharpener – Let me tell you about this knife sharpener! I won it at a conference almost ten years ago, and I still use it several times a week. It’s one of my go-to housewarming gifts and everyone I know just loves it.
- End grain cutting board – This is my absolute favorite cutting board and the one that I get the most compliments on. And p.s. I have a lot of cutting boards. It really is absolutely stunning, and knows how to take a beating. We use it every single day!
How to Cook a Prime Rib Roast
- rib roast mine was 6.5 pounds, you can get it with the bones in or out, doesn't matter
- 1 packet onion soup mix
- Place your roast rib side down (fat side up) on a foil lined roasting pan. Remove any strings. Rub onion soup mix over beef.
- For a roast that is rare in the center and slightly pink toward the outside, roast your prime rib uncovered at 500 degrees for 5 minutes per pound of meat, plus 5 more minutes (so I did mine about 38 minutes). Add time as desired for a more well cooked roast.
- Then turn the oven off and leave the roast for two hours. DO NOT OPEN THE OVEN.
- Carve and enjoy!