Turn your smoker on smoke with the lid open and allow it to smoke for 10 minutes. Turn the temperature up to 225, close the lid, and allow it to come up to temperature.
While the smoker heats up, place your ham on a baking sheet or disposable baking pan. Cover the ham with 1 cup of Dijon mustard and then sprinkle 1 cup of brown sugar all over it.
Place the ham in the smoker for 2 hours. After 2 hours, remove the ham and pour 1 small can of pineapple juice on top. Cover with foil, I like to make a foil tent so that the foil does not pull off the hams topping.
Place the ham back on the smoker for 2 additional hours.
30 minutes before you pull the ham off of the smoker, make the glaze.
In a small saucepan, add 1/2 cup of unsalted butter, 1/4 cup of pure maple syrup, and 1/4 cup of apple cider drink. Stir and allow it to reach a boil. Turn the heat down and let the glaze simmer for 10 minutes.
After 4 total hours on the smoker, remove the hams and slowly pour the glaze all over the top of the ham. Sprinkle the additional 1/4 cup of brown sugar on top of the glaze and allow the ham to rest while the brown sugar melts and the glaze sets (about 15 minutes). Enjoy!