There is a style of burger that Kansas has been quietly perfecting since the 1920s, and once you understand what makes an onion-fried burger different from anything else, it is impossible to go back. Thin patties pressed against a hot flat-top.
Onions cooked directly alongside the meat from the very first sizzle. A steamed bun that holds the whole thing together just long enough to disappear in three bites.
Kansas is home to a handful of small diners that have kept this tradition alive for generations, and every single one of them is worth going out of your way to find…