Bourbons foster is a decadent cocktail that used to be served at the alamo drafthouse chain of movie theaters. When it left the menu, one of our users reached out to alamo beverage director bill norris to get the recipe, and sent it our way. (thanks, nl) named after the flambeed-banana dessert, the bourbons foster demands the finest banana liqueur you can get your hands on. Alamo used giffards banane du brsil, a favorite of ours as well.