The Plaza Tavern in Madison Wisconsin

My Frank was in Madison yesterday visiting an old friend who was a professor at University of Wisconsin. They met at The Plaza. Since I've known Frank, he has told me about Plaza Burgers. It is the sauce they put on the burger. It is very unusual. It is hard to describe. The sauce is white in color, but it is not a "white sauce" which you cook with. Anyway, this is favorite place of his. He always brings extras home so we can taste the famous plaza burger. Bill Murray and John Cusack also go to the Plaza Tavern when they are in town. They like the burgers too.