There’s nothing like the aroma of prime rib slow-roasting over wood fire to elevate a meal. This method brings restaurant-quality results to your backyard with a simple herb crust.
I’ve perfected this technique over years of grilling, ensuring tender meat with a caramelized crust every time. The wood fire adds depth no oven can match.
Ingredients for Prime Rib Roast on Grill
Prime rib, fresh herbs, and wood fire create this wood-fired masterpiece with caramelized crust.
| Ingredient | Amount | Notes |
|---|---|---|
| Prime Rib Roast 🥩 | 5 lb | Bone-in, well-marbled preferred |
| Kosher Salt 🧂 | 2 tbsp | Diamond Crystal brand recommended |
| Freshly Ground Black Pepper 🌶️ | 1 ½ tbsp | Coarse grind preferred |
| Fresh Rosemary 🌿 | 3 slices | Sprigs, stems removed |
| Fresh Thyme 🍃 | 3 slices | Sprigs, stems removed |
| Garlic Cloves 🧄 | 6 cloves | Peeled, smashed |
| Dijon Mustard 🟡 | ¼ cup | Whole grain preferred |
| Extra-Virgin Olive Oil 🫒 | ¼ cup | High-quality, for herb paste |
| Hardwood Lump Charcoal 🔥 | 8 lb | Oak or hickory recommended |
| Wood Chunks 🌳 | 4 pieces | Hickory or cherry, soaked |
| Red Wine 🍷 | 1 cup | Dry, for au jus |
| Beef Broth 🥫 | 2 cups | Low-sodium preferred |
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The prime rib is non-negotiable here. USDA Prime grade with abundant marbling ensures that buttery texture—Costco or a reputable butcher are your best bets. Look for a roast with the bone still attached for maximum flavor. The herb crust relies on fresh rosemary and thyme; dried won’t deliver the same aromatic punch. If your butcher doesn’t carry prime, Choice grade works but requires more careful cooking to avoid dryness.
No fresh herbs? Dried herbs at one-third the amount can substitute, though the flavor won’t be as vibrant. Out of Dijon? Whole-grain mustard adds a nice texture, while yellow mustard in a pinch works for tang. For the wood, hickory gives a strong smoke flavor, while cherry wood adds a sweeter note. If using charcoal briquettes instead of lump, opt for natural, additive-free brands like Kingsford Original.
The roast can rest at room temperature for 1 hour before cooking. Leftovers keep beautifully—sliced thin for sandwiches or reheated gently in beef broth. Stores in the fridge for up to 5 days or freezes for 3 months with minimal quality loss.
Why You’ll Love This Recipe
- Set It and Forget: I season the roast with salt, pepper, and fresh herbs, then let the grill do all the heavy lifting.
- Herb-Crusted Perfection: That rosemary and thyme crust forms the most insane flavor barrier—juicy inside, aromatic outside.
- Holiday Hero: It’s my Christmas and Father’s Day centerpiece, but honestly, I’ll fire up the grill for this any Sunday.
- Leftovers for Days: One roast feeds us for a week—sandwiches, tacos, you name it, and it reheats like a dream.
Step-by-Step Instructions for Prime Rib Roast On Grill
Master the art of wood-fired prime rib with this precise, professional method for perfect results.
Step 1: Prepare the Herb Paste and Season the Roast
In a small bowl, combine the 0.25 cup Dijon mustard, 0.25 cup extra-virgin olive oil, 2 tbsp kosher salt, 1.5 tbsp freshly ground black pepper, 3 slices fresh rosemary, 3 slices fresh thyme, and 6 cloves garlic cloves into a thick paste. The herbs should be finely chopped to distribute evenly across the meat.
Pat the 5 lb prime rib roast dry with paper towels, then coat the entire surface with the herb paste, pressing it into the meat. This creates a flavorful crust that locks in juices during cooking. Let it sit at room temperature for 1 hour before grilling to allow the flavors to penetrate.
Step 2: Set Up the Grill for Indirect Heat
Prepare your grill for indirect cooking by arranging the 8 lb hardwood lump charcoal on one side of the grill, leaving the other side empty for the roast. Add the 4 pieces wood chunks (pre-soaked) directly onto the hot coals for smoke flavor. Maintain a steady temperature of 275°F throughout the cooking process.
Place a drip pan with 1 cup red wine and 2 cups beef broth under the grill grates where the roast will sit. This catches drippings for au jus and adds moisture to the cooking environment. Ensure the grill lid vents are positioned to draw smoke over the roast without direct exposure to flames.
Step 3: Smoke the Roast to Medium-Rare Perfection
Position the seasoned prime rib roast on the grill grates over the drip pan, fat-side up. Insert a meat thermometer into the thickest part of the roast, avoiding the bone. Smoke the roast with the grill lid closed for approximately 3-4 hours, or until the internal temperature reaches 125-130°F for medium-rare.
Monitor the temperature closely during the last hour, as the rate of cooking can accelerate. Rotate the roast 180 degrees halfway through cooking for even exposure to smoke and heat. Avoid opening the grill lid unnecessarily to maintain consistent temperature and smoke circulation.
Step 4: Rest and Carve the Roast
Once the prime rib reaches the desired internal temperature, transfer it to a cutting board and tent loosely with aluminum foil. Let it rest for 20-30 minutes to allow the juices to redistribute throughout the meat. This resting period is crucial for achieving a moist, tender result.
To carve, slice between the bones to separate the roast into individual ribs. For boneless roasts, slice against the grain into 1-inch thick servings. Serve immediately with the au jus collected in the drip pan, strained and warmed for dipping if desired.
Pro Tips For Making Prime Rib Roast On Grill
- Dry the Roast: Pat the prime rib completely dry with paper towels before seasoning—I learned this the hard way after my first few roasts came out steamed instead of seared.
- Reverse Sear It: Start with indirect heat at 225°F until the internal temp hits 110°F, then sear over direct high heat for a perfect crust every time.
- Skip the Cold Meat: Let the roast sit at room temperature for at least 2 hours before grilling, or you’ll end up with uneven cooking and a gray band in the middle.
- Herb Paste Upgrade: Crush the rosemary and thyme with the salt and pepper to make a paste—it sticks better and actually infuses the meat instead of just sitting on top.
Serving Suggestions for This Dish
Plating for Impact
Slice against the grain into 1-inch thick portions and fan them across a large wooden board. This rustic presentation lets the smoky aroma shine. I love using my olive wood serving board—it complements the wood-fired flavors beautifully. 🔥
Sauce Pairings
The au jus from your drip pan is liquid gold—strain and serve in small ramekins for dipping. For extra richness, whisk in 2 tbsp cold butter just before serving. A side of horseradish cream adds a bright contrast to the rich meat.
Classic Sides
Creamy mashed potatoes soak up every drop of juices perfectly. Roast Brussels sprouts with bacon and balsamic glaze for a smoky-sweet balance. My family always insists on Yorkshire puddings to complete the meal.
Wine Selections
A bold Cabernet Sauvignon stands up to the rich flavors—look for a Napa Valley vintage. For white wine lovers, a buttery Chardonnay from Sonoma pairs surprisingly well. I always decant reds 30 minutes before serving. 🍷
Finishing Touches
Garnish with fresh rosemary sprigs and a sprinkle of flaky sea salt like Maldon. The visual contrast of green herbs against the dark crust is stunning. Serve with warm sourdough rolls to mop up any remaining sauce.
Trained in classic French technique but raised on slow-cooked ribs and spicy rubs, she blends culinary skill with smoke and soul.
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