Melt-in-Your Mouth Prime Rib

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This herb-crusted grilled prime rib is tender, flavorful, and unforgettable. Learn how to cook the perfect medium-rare roast on the grill — ideal for holiday gatherings.

Buttery, Herb-Crusted. . .and Delicious!

If you’re looking for a show-stopping centerpiece for a holiday meal, special occasion, or any time you just want to treat yourself right…this grilled prime rib roast is it.

We’re talking buttery, herb-crusted beef with a gorgeous sear on the outside and a tender, silky interior that practically melts in your mouth. Every bite drips with savory juices — and yes, you’ll want to sop them up with bread or spoon them over your slices like liquid gold. It’s that good.

And the best part? With a little patience and the right technique, this restaurant-quality roast is completely doable at home on your grill.

For Christmas or Any Time of Year

We just had the family over for Christmas and I fired up the Traeger to make this beautiful prime rib. I don’t think it would be an exaggeration to say that every single person–and we’re talking folks of all ages–loved it.

And what’s not to love? The buttery spices on the exterior give the meat an exceptional flavor. And when I say this prime rib is tender, I’m talking “melts like butter” tender.

It was a very Merry Christmas at our place! But you certainly don’t have to wait for the holidays to cook this one up, friends. Once you see how easy it is, you can cook it year ’round!

Let’s get going!

Prime Rib Ingredients

You’ll find a recipe card at the bottom that you can print but here’s a look at what you’re going to need. If you can find the prime rib on sale, grab it! (We waited till close to Christmas because we figured the prices would drop, and they did.)

• 1 prime rib roast (6–7 pounds)
• 1 cup salted butter, softened
• 2 tablespoons finely chopped fresh rosemary
• 2 tablespoons finely chopped fresh thyme
• 2 tablespoons ground black pepper
• 2 tablespoons sea salt
• Kitchen twine

Before You Cook — This Step Matters

Remove the rib roast from the refrigerator and let it sit at room temperature for approximately 2-3 hours, until it reaches an internal temperature of 75°F before cooking. This helps the roast cook evenly — totally worth the wait!

🔥 Grill Temp & Setup

Preheat your grill to 450°F.

You’ll also want a large aluminum pan to hold the roast and catch those glorious juices.

🧈 Herb Butter Magic

In a bowl, combine:

✔ softened butter
✔ rosemary
✔ thyme
✔ salt
✔ black pepper

Mix until fully combined. This mixture is going to create that incredible crust.

🥩 Prep the Roast

Pat the roast dry with paper towels. Dry meat = better crust!

Tie 3–4 loops of twine around the roast to keep it tight and evenly shaped.

Place the roast in the aluminum pan.

Coat the entire roast — top, sides, all of it — with your herb butter mixture.

🔥 Time to Grill

Place the pan with the roast on the grill.

Insert an internal meat thermometer if you have one.

Cook at 450°F for 25 minutes to get that bold, flavorful sear.

Reduce grill temperature to 325°F and continue cooking for about 1 hour, or until the internal temperature reaches:

👉 130°F for medium-rare

Tip: Check at the 1-hour mark. If you’re not at 130°F yet, keep cooking and check periodically.

⏳ Rest & Serve

1. Remove the pan from the grill.
2. Let the roast rest for 10–15 minutes.
   (This allows the juices to redistribute — pure tenderness!)
3. Transfer the roast from the pan to a cutting board.
4. Slice to prepare for serving.

🔥 Doneness Guide (Internal Temps)

• Rare: 120–125°F
• Medium-Rare: 130–135°F (sweet spot)
• Medium: 140–145°F
• Medium-Well: 150°F+

(Remember: the roast will rise a few degrees while resting.)

⭐ Cooking Tips for Success

• Bringing the roast to room temp helps it cook evenly.
• A thermometer is your best friend here.
• Keep the twine on during cooking — remove before slicing.
• Don’t rush the resting time — it makes a difference!

💡 Don’t Forget the Au Jus!

Those juices in the pan? Oh yes — that’s built-in au jus.

Spoon it over the slices or use it for dipping. Your tastebuds will thank you.

Serve and Enjoy!

We had ours for Christmas with delicious sides–potatoes, green beans, our delicious Slow Cooker Honey Cream Corn and homemade sourdough bread. And (if I do say so myself) this was one of the most delicious meals I’ve ever enjoyed. The meat literally melts in your mouth and has the most amazing flavor ever. This is one dish I highly recommend. And you don’t need to wait till the holidays to enjoy it.

Final Thoughts

This prime rib is the kind of meal folks talk about long after the plates are cleared. Tender, buttery, richly seasoned, and cooked to perfection over the grill — it’s everything you dream a prime rib will be. Whether you’re celebrating Christmas, Thanksgiving, a holiday gathering, or just because…it’s always the right time for a roast like this.

You did an amazing job — now take a bow and grab another slice. You earned it. 😊

What to Serve with Prime Rib

We’ve got a great selection of sides to enjoy with this delicious meat. Here are a few favorites:

• Brown Sugar Honey Glazed Carrots: So simple and over-the-top tasty!
• Cheesy Potatoes with Bacon: Potatoes and Beef? Yes, please!
• Smoked Mac & Cheese with Panko: I mean. . .c’mon.
• Cheesy Corn Casserole: Incredibly easy to make and so delicious.
• Check out our drop-down menu for more tasty sides and appetizers, perfect for this prime rib.

Thanks for Stopping By!

If you make this recipe and enjoy it, please leave a review. And before you go, why not pin some photos to your Pinterest boards?

👨‍🍳 About the Pit Master — Zach

Zach is the fire-lovin’, meat-smokin’, flavor-seekin’ grill guy behind Backyard Texas Grill. He’s all about great food, great people, and making unforgettable meals right in the backyard. If it can be grilled, smoked, seared, or sizzled — Zach’s probably tried it (and made it delicious).