Trim the pork shoulder and score the fat cap
Mix the brown sugar and all seasonings together. Spread the mixture on all sides of the pork. Let the pork rest as you prepare the smoker.
Prepare the wood chips and water pan in the smoker, and preheat the smoker to 225 degrees.
Transfer the pork to the smoker fat side up and cook for several hours until it reaches 150-160 degrees, spritzing with apple cider vinegar each 1-2 hours.
Wrap the pork in foil or butcher paper and continue cooking for another 2-3 hours or until it reaches 200 degrees.
Rest the wrapped pork at room temperature for 30-45 minutes before shredding it.
If desired, mix the pork with your favorite barbecue sauce.