How To Cook Prime Rib Roast On The Big Green Egg?

In this post, I will be sharing my recipe on how to cook prime rib roast in the Big Green Egg so you can have a nice meal at home without having to order food from restaurants.

This recipe and guide will teach you how to cook this expensive and beautiful cut of meat properly.

It is easy and it will be worth the try as it is a very delicious cut of meat.

On a regular grill, you might have struggled with cooking this fantastic cut.

However, since you will be using a Big Green Egg, the results will be much better, and it will be a lot easier to do.

The prime rib roast is one of my favorites since it has just the right amount of marbling to it and the beefy taste that I love.

I ordered mine from snake river farms and the quality of prime rib roast was out of the world. So make sure you check it out.

It is perfect with beverages as well as other side dishes.

I try to maintain the flavor of the meat, but today, we will be turning it up a notch.

We will be using beautiful spices and basic seasonings to get the flavors of the beef boosted.

So use the recipe below as well as the guide by the end to answer all your questions about prime rib roast and how to cook it ideally using the Big Green Egg Kamado grill that you have.

Prime Rib Roast Recipe

Ingredients

• One prime rib roast, about 8 to 10 pounds
• 8 to 10 cloves of garlic
• 2 sticks of unsalted butter
• 2 tablespoons of beef seasoning that you like
• 1 tablespoon of minced rosemary
• 1 tablespoon of minced thyme

Step 1: Prepare The Prime Rib Roast

Place the prime rib roast in the refrigerator for 4-6 hours or overnight to defrost it properly.

This will slowly warm up the prime rib roast and prevent contaminants and bacteria from getting to it.

2 hours before cooking, bring out the prime rib roast from the refrigerator and then rinse it.

Start trimming the fat cap but leave a thin layer of fat, about a quarter of an inch for a tender finish.

Grab a paper towel and a knife and remove the silver skin.

This is the thick membrane under the ribs that separates the actual meat and bone from the animal’s organs.

It blocks the seasonings sometimes, so make sure that you remove it before you season the prime rib roast to get the best out of the spices and seasonings that you will be using.

Step 2: Season The Prime Rib Roast

Get a pan and soften the two sticks of butter in it. Mix the garlic, minced herbs, and beef seasoning into the butter until the salt and the seasoning dissolve.

Apply the butter all over the prime rib roast and then let it rest.

Allow the seasonings to get into the meat by rubbing it on all sides and slightly massaging the butter mixture into the meat.

Step 3: Prepare The Big Green Egg

Place enough charcoal in the firebox of the Big Green Egg grill and then light it up.

Set the temperature to 350 degrees Fahrenheit and close the lid with the top and bottom vents open.

Set the Big Green Egg to indirect cooking by placing the convEGGtor into the grill.

To add more flavor to the mix, I used applewood chips to create the right amount of smoke in the grill.

Allow the grill to preheat for at least 20 minutes to kill all the contaminants settled both on the walls and the grill grates of the Big Green Egg.

Step 4: Cook The Prime Rib Roast

Once the Big Green Egg’s temperature is stable at 350 degrees Fahrenheit and the smoke that comes out of the top vent is clean or bluish, place the prime rib roast on the grill.

Place it right on the grill grate and then close the lid of the grill. Let the prime rib roast cook for at least an hour undisturbed to get consistent heat into the meat and allow it to cook through.

Check if the Big Green Egg has enough charcoal in it and replenish it if necessary. Insert a meat probe into the thickest part of the prime rib roast and read the internal temperature every 30 minutes.

Once the internal temperature reads 125 degrees Fahrenheit, remove the prime rib roast from the grill. 

Place the prime rib roast on a clean cutting board and then let it rest for at least 30 minutes before slicing and serving it.

How Do You Smoke Prime Rib On The Big Green Egg?

The Big Green Egg grills are powerful and they are not meant for smoking meat. The power they can produce is too hot for smoking meat, so you need to improvise.

Luckily, the Big Green Egg grills are well-insulated. That means they can maintain their temperature for a very long time even if you set the temperature to the lowest.

You can use a temperature of around 300 degrees Fahrenheit to cook the prime rib properly. Just make sure to maintain that so that the prime rib does not get burned quickly.

Always use the accessories from Big Green Egg such as the convEGGtor to prevent flare-ups. This will also help slow down the cooking process and make sure that the heat is evenly distributed.

How Long Does It Take To Smoke A Prime Rib At 225 Degrees?

This is a pretty low temperature for smoking in the Big Green Egg and fact, I believe that it is the actual limit of the grill as it can no longer go at lower temperatures than that.

Depending on the weight of the prime rib, you will need to smoke it for hours.

At this temperature, you will need to smoke the prime rib for about 6 to 8 hours.

That is when you cook a 10-pound prime rib.

The rule of thumb when you smoke prime rib at this temperature is to allow the prime rib to cook undisturbed for 40 minutes per pound.

How Long Does It Take To Smoke A Prime Rib At 350 Degrees?

At this temperature, the Big Green Egg grill can maintain the heat and divide it evenly throughout the interior of the cooking chamber. This is a better temperature to smoke the prime rib in.

The problem is that you might risk burning the crust or the outer parts of the prime rib if you do not use the convEGGtor. This temperature will cook the prime rib so much faster.

However, at 350 degrees Fahrenheit, the cooking time still takes around 15 to 20 minutes per pound. That means that a 10-pound prime rib will cook in about 2 and a half hours at the fastest.

How Long Can A Prime Rib Sit In The Refrigerator Before Cooking?

Prime rib, or any cut of meat for that matter, should not stay for too long in the refrigerator.

It is better to let it stay or store it in the freezer to keep the meat in good condition with no contaminants.

The only time that you place the prime rib in the refrigerator is when you defrost it. If you store the prime rib in the refrigerator, it will only take 3 to 4 days before it goes bad.

So when you are storing the prime rib in the refrigerator, make sure to cook it before the 5th day.

That way, you do not have to deal with a very expensive cut that has gone bad in the refrigerator.

What Is The Best Wood To Smoke A Prime Rib?

I only use milder types of wood when smoking prime rib and other cuts of meat.

That way, I do not overpower both the seasonings and the flavor of the meat itself.

For the recipe above, I used applewood as it emits a slightly sweet smoky flavor.

However, I still think that the best type of wood for smoking a prime rib is hickory.

This type of wood does not emit sweet or unusual flavors other than the authentic BBQ taste you get. This is perfect for prime rib as it is also mild, meaning it smells like authentic smoke but does not overpower.

What Is The Difference Between Prime Rib And Rib Roast?

In a store, they can label prime rib and rib roast as one. That is because they come from the same part of the animal, the rib, and they have very similar marbling and fat content.

The rib roast is cut before it is served or cooked. That means that a rib roast is more often sold as steak than as ribs. 

Prime rib, on the other hand, is cooked with the bones still inside the meat.

This results in a more tender finish and perhaps a better flavor when you cook it the right way.

I prefer the prime rib as it has the bone that helps lock in the flavor when it comes to the flavor.

It also makes the meat more tender as the bone heats up and cooks the meat’s interior.

Rib roast can also get tender and juicy when cooked, but it is harder to handle because it is pure meat and fat.

It can easily get burned or overcooked when you are not careful in cooking it.

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