Smoked prime rib is often the centerpiece of holiday dinners. Slow smoking builds deep, smoky flavor, then a quick high-heat finish creates a flavorful crust—this method yields a tender, juicy roast every time.

What is a Prime Rib Roast?
A rib roast comes from the primal rib section of the cow and includes several rib bones surrounded by well-marbled, tender muscle. A whole rib roast can include up to seven ribs and can weigh many pounds, depending on how much you buy.
When a recipe refers to “prime rib,” it usually means the cut—an entire primal muscle—rather than the USDA grade. USDA Prime is the highest grade and has more marbling, which adds flavor and juiciness, but Choice and Select cuts are also sold as prime rib roasts and will work with this method.

Which Grade Should You Buy?
Beef grade affects flavor, tenderness, and price. USDA Prime has the most marbling, producing richer taste and a more tender result, but it costs more. Choice is an excellent compromise—still flavorful and tender for most home cooks. Select will work in a pinch, though it may be leaner and a bit less tender.
If budget allows, choose Prime for special occasions. If you prefer a more economical option, Choice will still yield outstanding results when cooked using the low-and-slow smoking method followed by a high-heat finish.

How Much Prime Rib Per Person?
Plan on about 1 pound of uncooked prime rib per person for a sit-down meal. This accounts for trimming, cooking losses, and leaves a bit of extra for seconds or sandwiches the next day. If children are included, you can reduce the total slightly since kids typically eat less.

Ingredients for Smoked Prime Rib
This recipe is simple and relies on quality meat and basic seasonings.
- 8–10 pound bone-in prime rib roast
- 1/2 cup horseradish Dijon mustard
- 2 tablespoons Worcestershire sauce
- 4 cloves garlic, minced
- 1 tablespoon coarse kosher salt (adjust as needed)
- 1 tablespoon freshly cracked black pepper (adjust as needed)
Quick note: adjust salt and pepper so the roast is evenly coated on all sides.
How to Smoke a Prime Rib
With the roast selected and ingredients ready, follow these steps for a reliably delicious smoked prime rib.
- Preheat: Heat your smoker to 225°F and use a hardwood suitable for beef (oak, hickory, or pecan are good choices).
- Trim and season: Trim excess fat to about 1/4 inch. Mix the mustard, Worcestershire, and garlic, then slather the roast. Season generously with salt and cracked pepper.
- Smoke: Place the roast on the smoker grates and close the lid. Smoke until the internal temperature reaches 120°F for rare, 125°F for medium-rare, or 130°F for medium.
- Rest: Transfer the roast to a cutting board, tent loosely with foil, and rest for about 20 minutes. While it rests, raise the smoker temperature to 400°F.
- Sear: Once the smoker is up to 400°F, return the roast and sear until the internal temperature reaches your final target: 130°F for rare, 135°F for medium-rare, or 140°F for medium. This high-heat finish should be quick—monitor temperature closely.
- Rest and serve: Remove the roast, let it rest at least 15 minutes, then slice and serve.

How Long to Smoke Prime Rib
As a general guideline, smoking at 225°F will take about 35 minutes per pound to reach rare. For medium doneness, expect roughly 40 minutes per pound. These are estimates—an accurate probe thermometer is essential to hit exact doneness.
Factor in at least 30 minutes of resting time and another 15 minutes for the high-heat sear when planning total time from start to finish.

Smoked Prime Rib Recipe
Follow the method above and you’ll have a show-stopping roast. If you enjoyed this recipe, leave feedback to help others find it.

Smoked Prime Rib
Ingredients
- 1 8–10 pound bone-in prime rib roast
- 1 tablespoon coarse kosher salt (adjust as needed)
- 1 tablespoon cracked black pepper (adjust as needed)
Garlic Mustard Slather
- 1/2 cup Dijon mustard with horseradish
- 2 tablespoons Worcestershire sauce
- 4 cloves garlic, minced
Instructions
- Preheat. Preheat your smoker to 225°F.
- Trim. Trim excess fat from the top of the roast to about 1/4 inch.
- Season. Combine mustard, Worcestershire, and garlic. Slather the roast and season liberally with salt and pepper.
- Smoke. Place the roast in the smoker and cook until internal temperature reaches 120°F for rare or 130°F for medium. For rare, estimate about 35 minutes per pound at 225°F.
- Rest. Remove the roast, tent with foil, and rest for 20 minutes while you raise the smoker to 400°F.
- Sear. Return the roast to the smoker at 400°F and sear until it reaches 130°F for rare, 135°F for medium-rare, or 140°F for medium. Watch the temperature closely.
- Rest and serve. Let the roast rest at least 15 minutes before slicing and serving.
Nutrition
Carbohydrates: 3 g |
Protein: 50 g |
Fat: 97 g |
Saturated Fat: 40 g |
Cholesterol: 219 mg |
Sodium: 954 mg
Nutrition information is an approximation.