A smash burger is a type of hamburger. According to the Food Network, "A smash burger is a thin beef patty cooked on a super-hot griddle. The burger is smashed down, usually with a spatula, to increase browning and craggy bits on the surface for extra flavor." [1] Popularized by Smashburger, [1] smash burgers have grown in popularity in recent years.[ when? ] [2] The Oklahoma Onion Smash Burger or an "Okie Burger" is a type of smash burger which contains thinly sliced onions smashed together with a burger patty. The onions are thinly sliced to achieve the desired caramelization. [3]