STEP 1:
Trim and tie the rib roast for even cooking. Season with a coarse rub and leave in the fridge overnight.
STEP 2:
Preheat oven/smoker to 225°F (107°C) and coat with zesty horseradish paste.
STEP 3:
Use a ThermoPro Twin TempSpike 500-ft Wirefree Meat Thermometer to monitor the cooking temperature of your ingredients. Cook until the internal temperature reaches 123°F (51°C) for rare/medium rare or 133°F (56°C) for medium.
STEP 4:
Remove from oven and let rest for 30 minutes to an hour, then sear in the oven or use a torch for 5-10 minutes.
STEP 5:
In a saucepan, combine beef broth, red wine, minced garlic, Worcestershire sauce, salt, and black pepper.
STEP 6:
Bring the mixture to a simmer over medium heat and let it cook for about 10-15 minutes, allowing the flavors to meld. Strain the sauce to remove garlic and other solids, leaving you with a smooth au jus sauce.