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sliced smoked prime rib

Traeger Smoked Prime Rib with Horseradish Cream

This prime rib is seasoned with a savory bbq rub and then smoked to perfection on a Traeger pellet grill before we turn up the heat and reverse sear it for an amazing exterior crust. Served optionally with a horseradish cream sauce.
5 from 1 vote
Prep Time 45 mins
Cook Time 2 hrs
Resting Time 45 mins
Total Time 3 hrs 30 mins
Course Main Course
Cuisine American, Australian, BBQ, Smoked
Servings 8 people
Calories 500 kcal


  • Traeger Pellet Grill
  • Cutting Board
  • Meat Slicing Knife
  • Aluminum foil pan
  • Instant Read Thermometer
  • Dual Probe Thermometer
  • Pellets for smoking, preferably hickory and oak.


  • 1 Prime Rib Roast bones removed but tied on, 5-8 lbs (plan on 1 lb per person served)

Savory Beef Rub for Prime Rib

  • ½ cup Kosher Salt
  • ½ cup Black Pepper
  • ¼ cup Fresh minced garlic about 10 cloves fresh
  • 1 Tbsp Paprika
  • 1 Tbsp Dried rosemary or can substitute fresh rosemary, finely minced
  • ½ Tbsp Onion Powder
  • 1 tsp Dried Thyme
  • Cooking Oil High smoke point oil like avocado or grapeseed oil

Horseradish Cream (optional)

  • 1 cup Sour cream
  • ¼ cup Horseradish
  • 1 Tbsp Stone ground or dijon mustard
  • ½ tsp Kosher Salt
  • 1 tsp white wine vinegar
  • Fresh cracked black pepper to taste


Season the Prime Rib

  • Take prime rib out of the packaging but DO NOT cut and remove strings.
    ties on a raw prime rib roast
  • Rub with a thin layer of cooking oil.
  • Mix all the rub ingredients and thoroughly and coat the entire outside of the prime rib including the sides with the mixture.
    seasoned prime rib going on a traeger grill
  • Wrap in plastic wrap and place in the refrigerator until ready to put on the Traeger.
    wrapping prime rib in plastic wrap

Start the Traeger Grill

  • Load the hopper of the Traeger with your chosen wood pellets.
    traeger hopper filled with pellets
  • Turn on the Traeger and move the dial to the "Smoke" setting.
  • Leave the lid open for 5-7 minutes until you start seeing white billowing smoke coming out of the grill. This means the initial pellets are igniting.
    traeger pellet grill making thick white start up smoke
  • Close the lid and turn the temperature dial to 250°F. Allow 10-15 minutes for the grill to come up to temperature.
    traeger pellet grill set to 250 degrees

Smoke the Prime Rib on the Traeger

  • Remove the prime rib roast from the refrigerator and remove the plastic wrap.
  • Once the temperature of the Traeger hits 250°F, place the roast in the cooking chamber. Place a temperature probe into the deepest part of the rib roast.
    smoking a prime rib on a traeger
  • Cook at this temperature until the internal temperature reaches about 110°F.

Prepare the Horseradish Cream Sauce (optional)

  • While the prime rib is smoking on the Traeger, you can prepare the horseradish cream sauce if you wish.
  • Combine all the horseradish cream sauce ingredients in a small bowl and mix well to incorporate. Add extra salt as needed.
    mixing ingredients for horseradish cream sauce for smoked eye of round
  • Cover the bowl with plastic wrap and place in the refrigerator to serve with the prime rib later.

Reverse Sear the Prime Rib on the Traeger

  • Once the internal temperature of the prime rib reaches 110°F, turn the temeparture of the pellet grill as high as it will go.
  • Watch closely to make sure it does not burn and cook until the internal temperature rises to about 120-125°F then remove from the Traeger.
    reverse searing a smoked prime rib on a traeger grill

Remove, Rest, and Slice the Smoked Prime Rib

  • Let the smoked prime rib rest in an aluminum foil pan, uncovered or very loosely tented with foil for 45 minutes.
    a smoked ribeye roast
  • Cut the ties off the prime rib roast and gently remove the slab of bones away from the rest of the roast. Do not discard, these are delicious.
    removing the bones from a smoked prime rib
  • Place the main part of the roast on a cutting board and slice in thick slices for each guest.
    slicing a smoked prime rib
  • Serve immediately with horseradish cream sauce on the side.
    finished smoked prime rib cooked on a traeger pellet grill



Recipe inspired by and Video Courtesy of It's Ryan Turley
Keyword barbecue, bbq, BBQ Rub, Beef, Dry Brine, electric smoker, Garlic, Grilling, hickory, horseradish, horseradish cream sauce, How to, pellet grill, pellet smoked, pellet smoker, Prime Rib, prime rib roast, reverse sear, ribeye roast, smoked, smoked prime rib, traeger, Wood pellets, wood smoke