Preheat smoker to 250 degrees F using either pecan, cherry, apple, maple or oak.
Drain and rinse two of the cans of beans, pour into a cast iron pot or skillet, or use a 8x8 disposable aluminum baking tin. Pour in the third can of beans with the liquid. Stir to combine.
Add the onion powder, brown sugar, vinegar, molasses, bbq sauce, dried mustard, salt and pepper.
Stir to combine.
Cook bacon briefly in a skillet to render out some fat. Drain out the fat then place the bacon pieces on top of the beans.
Sprinkle the top with coarse black pepper.
Place in smoker and cook at 250℉ for 2-3 hours uncovered until bacon is darkened and crispy on top.
Remove from the smoker and allow to cool briefly before serving.
Stir when serving to mix in the bacon.