Slow Roasted Prime Rib at 200 Degrees Recipe: Must Try!

Slow Roasted Prime Rib at 200 Degrees Recipe

Slow roasted prime rib is an excellent meal to share with your family and friends. It will never disappoint you when you cook it well, so you need to be cautious when making it. You want to ensure that not a single coin of yours goes to waste by making it more flavorful and locking in all the juices in it.

If you want it to turn out well, you need to know the right temperature to roast the prime rib. This article will guide you on making slow roasted prime rib at 200 degrees and how long you should do it. Read on!

What is the Best Temperature to Slow Roast Prime Rib?

Prime rib cooking time and temperature

When slow roasting the prime rib, you want to ensure that you do so at the right temperature. Doing so will ensure that it cooks well, giving you the texture you wish to inside and outside. The temperature you use may vary depending on the kind of oven you are using.

But, you cook it at the same temperature no matter how you want it done. It means that whether you like it well-done or medium-rare, the oven cooking temperature will be the same. The only thing that will vary is the period you cook the prime rib and the internal temperature it should reach.

Usually, the ideal temperature for slow roasting prime rib is 200ºF. This temperature is perfect if you use an oven that works by convection to cook things. So, it transfers heat from it to the outside of the ribs.

While the 200ºF is a pretty low temperature for roasting, it will ensure that the prime ribs become pinker and has their juices intact. It will take longer to roast your rib, but that’s the point of using this temperature level. Also, before placing the ribs in the oven, be sure to preheat the oven at this temperature.

If you are not using the convection oven, cook it at 225 degrees. No matter the temperature you choose to use, roast it until the internal temperature is ideal for you.

How Long Does it Take to Cook Prime Ribs at 200 Degrees?

Prime rib

Prime ribs will take different times to cook, depending on how you want it done. Also, the size of ribs will determine how long they will take to get ready. Typically, each pound should be prepared within 30 minutes to 1 hour if you cook it at 200 ºF.

So if you are making several pounds of the prime rib, give it a couple of hours to get ready. Also, they will take quite a long time until they reach the ideal internal temperature. On the other hand, others will need less time if the internal temperature they need to get is small.

But be sure to always take it out of the fridge several hours before cooking it to give time for defrosting.

Also, you will need to provide yourself with a 1-hour buffer when cooking the ribs. Remember, the ribs will lose some heat as you check whether it is ready, so you must add more time to recover the temperature.

Slow Roasted Prime Rib at 200 Degrees Recipe

Slow Roasted Prime Rib at 200 Degrees

To make a great-tasting prime rib, you will first require preparing it well. You do not need to use tons of seasonings to make it tasty, but you can always season it with the amounts you feel right. 
5 from 1 vote
Prep Time 30 mins
Cook Time 4 hrs
Resting Time 15 mins
Course Main Course
Cuisine American
Servings 4 Servings


  • Prime Rib Roast
  • Olive oil
  • Kosher salt or Sea Salt
  • Ground black pepper


Step 1: Trim fat from the ribs

  • Start by separating the roast from rib bones. Then remove a tiny layer of fat by slicing slits into the fat cap. Ensure you do not cut the meat as you do; therefore, let your butcher help you with this step.

Step 2: Season the Ribs with salt

  • Ensure you have your ribs a day before cooking them. You will be seasoning it with salt all day long before cooking it. 

Step 3: Leave it to marinate

  • Place the roast on a sheet pan. Allow it to sit in the fridge uncovered for a night so that the seasoning can get into it.

Step 4: Preheat the Oven

  • Preheat your oven at 200 if you are using the convection one. If you are not using this kind of oven, preheat it at 225.

Step 5: Add olive oil and ground pepper to the roast

  • As the oven preheats, remove the ribs from the fridge and place them on a rack in a roasting pan. Sprinkle some olive oil and black pepper on it. Then rub these two all over the ribs.

Step 6: Allow the prime ribs to cook

  • Place the roasting pan in the oven and allow the prime ribs to start slow cooking. The ribs should cook at the same temperature to preheat the oven. The period they will take until ready depends on the size.

Step 7: Check the temperature

  • Usually, it can take between 3 to 4 hours for the roast to be well-cooked. So, after this time, you can check the roast's internal temperature using a meat thermometer.
  • If you want it to cook until it is medium-rare, then the internal temperature should ready 120. However, you can allow the ribs to cook to 5 degrees below the degrees you want it done.

Step 8: Remove the meat from the oven

  • At this point, remove the roast from the oven. Then cover it with a foil for about 20 minutes. During this time, turn up the temperature to 500 ºF.

Step 9: Return the roast to the oven

  • Once the oven temperature reaches 500 degrees, it is time to return it to the oven. Remove the foil before placing it back.

Step 10: Allow the roast to cook

  • Allow the roast to cook at 500 degrees temperature for about 10 to 15 minutes. Let it cook until the outside is brown and crispy.
  • After well done, please remove it from the oven and place it on a cutting board. Allow it to rest for 15 minutes, then serve.


The preparation method is pretty straightforward, and within a few minutes, your prime rib will be in the oven cooking.
Keyword Slow Roasted Prime Rib at 200 Degrees
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Prime Rib at 200 Degrees Minute per Pound

If you cook the prime rib at 200 degrees, each pound can cook for around 30 minutes. Others may extend to approximately 45 to one hour per pound if maybe you want it to get crispy and brown.

If you want yours to be still pinkish or not well done, it may take around 20 minutes per pound to reach here.

How Do I know When Prime Rib is done?

You can check whether the prime rib is done by looking at the appearance. It will be crispy on the outside and tender on the inside if ready. But to guarantee you that it is well done, check using a thermometer.

If you want the meat rare, the meat thermometer will be ready 120 to 125ºF. If medium rare, the thermometer readings will be 130 to 135 degrees and 140 to 145 degrees if well done.

How Can I Improve this Recipe?

You can make your prime rib turn out better by ensuring that it rests for about 15 or 20 minutes once you remove it from the oven.

Then return it for cooking for more minutes. Also, always leave it in the fridge for a night after seasoning it with salt.

Final Words

Slow roasting prime rib will take you about 3 hours to be ready, but this depends on your amount. Preparing is always quick and heavily determines how the prime rib turns out. You can even season it with salt three or five days before cooking it to make it taste better.

So, do you already know how to make slow roasted Prime Rib at 200 degrees in oven? Please, feel free to share your comments below!

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