Let the prime rib sit at room temperature for about 30 minutes before smoking to help it cook more evenly.
Prepare your smoker with wood chips according to manufacturer instructions. Set the temperature to 225°F (107°C).
In a mixing bowl, combine olive oil, kosher salt, black pepper, garlic powder, onion powder, dried rosemary, and dried thyme. Mix well.
Rub the seasoning mixture all over the prime rib, ensuring it’s evenly coated.
Place the prime rib in the smoker. Close the lid and let it smoke for about 3 to 4 hours, or until the internal temperature reaches 130°F (54°C) for medium-rare. Check the temperature with a meat thermometer.
Every hour, baste the prime rib with beef broth to keep it moist and enhance flavor.
Once the desired temperature is reached, carefully remove the prime rib from the smoker and wrap it loosely in aluminum foil. Let it rest for about 20-30 minutes.
After resting, slice the prime rib against the grain and serve it with your favorite sides.
For different flavor profiles, try using different wood chips like apple or cherry.