Preheat your smoker to 225F or 107C.
If your pork belly has skin, remove it and season it liberally with your BBQ rub.
Smoke the pork belly until it reaches 200F or 93C.
Preheat your air-fryer/oven to 350F or 177C.
Cook the pigs in a blanket for 7-9 minutes or until golden brown.
While the pigs in a blanket are cooking place a frying pan over medium heat and pour in the whiskey/bourbon. Light the whiskey/bourbon and once the flame is gone the alcohol is gone.
Add in the brown sugar and whisk until it has dissolved.
Add the butter and whiskey/sugar mix to a bowl and whip it until all combined.
Once the pigs in a blanket are done cooking serve them with the whiskey brown sugar butter.