Preheat your smoker or BBQ to 225°F. Add wood chips to the coals or fit your BBQ with a smoking box.
In a small bowl, stir together all the rub ingredients.
¼ cup brown sugar, 1 tablespoon chili powder, 1 tablespoon smoked paprika, ½ teaspoon garlic powder, ½ teaspoon onion powder, 1 teaspoon ground mustard, 1 teaspoon kosher salt, ½ teaspoon ground black pepper
Pat the roast dry. Trim off any excess fat down to ¼ inch.
4 pound boneless pork loin roast
Drizzle with olive oil and liberally season on all sides.
Olive oil
Place the roast on your grill and smoke for 60-90 minutes or until the pork reaches 145°F.
Remove from the grill, tent with foil, and let rest for 10 minutes before serving.