Tim's Coney Island Mustard potato chips on In The Chips with Barry this fine Friday. I’ve heard and had just about every kind of mustard out there - Chinese hot mustard, German brown mustard, Dijon mustard, yellow mustard, etc. But, I’ve never even heard of Coney Island mustard. Apparently it has onions and the stuff in it that makes it different than other mustards so I am really looking forward to trying these potato chips out.