Quickdog, many years ago I worked in an old NY ‘cigar store’, complete with a soda fountain (where I learned the fine art of making egg creams). The shop was owned by two brothers, russian jews, who were the nicest people you’d ever want to meet. Leo, the older one, would occasionally send me across the street to the “german” deli, to get him a hot dog topped with mustard and potato salad. Looked interesting, and he swore it was the only way to eat a dog, but I never did try it. Maybe one of these days…..