Oklahoma's Regional Burger That's A Must-Try For Onion Lovers - Chowhound

Pabradyphoto/Getty Images Part of what makes American cuisine so unique is the number of regional foods scattered throughout the country (here are 19 that you should try at least once). Whether it comes from regional fast food chains or home-cooked specialties, there's a lot of deliciousness to explore in the States. Even classic items like hamburgers have their own regional spins. In the state of Oklahoma, for…