Melt 3 tablespoons of the butter in a large skillet over medium-high heat. Add 2 tablespoons of the green parts of the green onions and all of white parts. Saute for 3 minutes.
Add the bourbon and beer and boil until reduced by half.
Add the barbecue sauce, Worcestershire, lemon juice and brown sugar. Boil for 1 minute.
Add the heavy cream, the remaining butter, and the hot sauce. Let boil until thickened, about 5 minutes.
Season with salt and pepper.