Making the Oklahoma Onion Smash Burger Recipe

Did you know one of America’s most iconic burgers started right here in Oklahoma? 🍔 The Oklahoma onion burger was born in El Reno during the Great Depression when beef was expensive and cooks needed a way to stretch the meat. Their solution was simple — smash a pile of thinly sliced onions directly into the patty while it cooks. The onions caramelize into the meat, creating that signature flavor people still love today. And at Sid’s Onion Burgers, they’re still serving this Oklahoma classic the