Preheat your smoker to 250°F for approximately 20 minutes before preparing the meat.
Trim excess fat, leaving a thin layer for flavor, using a sharp knife. Use a meat tenderizer to ensure an even fat layer.
Mix softened butter and garlic, then rub onto the meat. Coat with salt and pepper or your preferred seasoning.
Cook until the center reaches 135°F (for rare) to 145°F (medium). Cooking time is 3-4 hours.
Allow the roast to rest for 20 minutes before cutting, ensuring the juices are distributed evenly. You can also wrap it in tinfoil to prevent drying out.