Preheat the oven to 375. In a large casserole dish mix beans, bourbon, syrup, honey mustard, minced onion, garlic powder, half of the brown sugar. (You can add any other seasonings you would like...I add Tony Chacheres to everything!)
Sprinkle brown sugar over the top and add pats of butter. Bake until the brown sugar is well dissolved into a syrup like consistency. (About 45 mins).