Melt half a tablespoon of butter in a saucepan over medium heat.
Add half a tablespoon of flour and whisk until smooth.
Pour in the bourbon whiskey, maple syrup, brown sugar, apple cider vinegar, ketchup, sweet rub, cayenne pepper, Dijon mustard, and soy sauce.
Stir until the mixture is well combined.
Bring the mixture to a boil, then reduce the heat to low.
Simmer for about 20 minutes until it thickens.
Remove from heat and allow it to cool slightly.
Use it as a glaze for your favorite dish.