Juicy beef patties get piled high with thin-sliced onions that caramelize directly on the grill alongside the meat, melting into gooey sweetness under a blanket of cheese. This Oklahoma-style smash burger uses fresh-ground chuck for a loose, tender texture that soaks up the onion juices without falling apart. It comes on a soft bun with standard toppings, and the heat from the griddle infuses every bite with smoky depth. Hand-cut fries and thick milkshakes round out the old-school experience.