https://www.foodrepublic.com/1601099/oklahoma-onion-burger-origin/
The Oklahoma Onion Burger Has Been A Legend Ever Since The Great Depression
Jun 15, 2024 - The Oklahoma onion burger combines fatty meat with tons of alliums to stretch it further, a trick first used in the 1930s when supplies were scarce.
oklahoma onion burgerhas been
https://www.dallasobserver.com/food-drink/first-look-kellys-onion-burgers-15895070/
Kelly's Onion Burgers Is Oklahoma's Version of the Smash Burger
Feb 10, 2023 - Last week while perusing breweries for things to do over the weekend, Kelly's Onion Burgers was mentioned on Peticola's Facebook page.
kelly sof theonionburgers