The humble beginnings of the Oklahoma Onion Burger lie in economic necessity. In the 1920s, a smattering of cafes in Western Oklahoma sought ways to stretch beef further in their menu offerings. Cooks found that ground beef pressed with a pile of thinly shredded onions not only tasted good but helped cafes stay profitable as the Great Depression loomed. Soon, diners and cafes all over Oklahoma were serving fried onion burgers, and they have been a staple ever since. The Onion Burger capital of the world is nearby El Reno, OK, where three famous diners inhabit a three block radius--serving delicious fried Onion Burgers to throngs of eager patrons. Every May a festival is held in honor of the onion burger, and a team of volunteers produce an 800 pound Onion Burger for festival goers. Added on February 25, 2017 and last updated 7 years ago   A NOTE ABOUT THE HALAL STATUS OF TUCKER'S ONION BURGERS   This restaurant is listed as sourcing some/all of its meat from a known supplier of Halal meat. This means that the management or employees of this restaurant may not be aware of their own halal status if asked. However, they may be able to confirm their meat supplier is Creekstone Farms, in which case you can proceed if you feel comfortable eating there. Feel free to click on the name of the supplier and/or certifier listed in the Halal summary to learn more about their Halal procedures. Even if you do decide to eat here, we recommend you politely ask that they clean their grill and ensure no contact with non-Halal meat or alcohol.