I was to Shake Shack once and I’m kicking myself that I didn’t try their hamburger, which has gotten rave reviews. I wasn’t crazy about their Chicago style hot dog. It wasn’t prepared well. The ingredients didn’t seem fresh and the actual frankfurter was barely warm. Plus it’s not really an authentic Chicago dog. The relish isn’t the neon green type you get in Chicago. It and the pickles come from Rick’s Picks, a New York company. And very few places in Chicago put cucumbers on their hot dogs.
When I went to Yankee Stadium a few years ago I was served a skinless Nathans that was grilled. The natural casing frank should be grilled also. These dogs can be hard to find in stores, but right on the package it suggest that you grill, not boil Nathan’s.