Bona Fide Deluxe shared by @eater says: ""The burger here is elusive, but worth seeking out whenever it’s available. Variations might include a thicker patty or two smashburger patties, but they’re always house ground from a blend of brisket and beef and served atop a sesame kaiser roll from Alon’s. Word about when they’ll be served will typically spread first through their Instagram page, so keep your eye out so that you don’t miss it."" on Postcard