Nothing says summer quite like a sizzling frankfurter fresh off the grill, nestled in a pillowy bun. Whether you call it a wiener, a frank, a footlong, or a red hot, National Hot Dog Day, celebrated every year on the third Wednesday in July, is the ultimate excuse to indulge in this iconic American staple. But before we dive into the toppings, let’s address the ultimate backyard debate: Is a hot dog a sandwich? What toppings do you use?