 This is Milk Street Radio from PRX, and I'm your host, Christopher Kimball. Today we're sharing the stories behind your favorite summer foods, the ones you're piling on your paper plate at the July 4th cookout. We're talking about grilled corn, flag cake, and the star of every backyard barbecue, the hot dog. The juices, the fat in it, with flavoring, with salt, flowing into the bun with the other ingredients is unparalleled.