
“The diner classic, deconstructed. All the flavor of a juicy burger and caramelized onions without the grill.”
Heat olive oil and butter in a large skillet over medium heat. Add sliced onions and cook slowly 10–12 minutes, stirring occasionally, until deeply golden and caramelized. Remove to a plate.
Form ground beef into 4 thin, wide patties. Season generously with salt and pepper.
Turn skillet heat up to medium-high. Add patties and cook 3–4 minutes per side until a nice crust forms.
Splash Worcestershire sauce over the patties in the pan.
Top each patty with a scoop of caramelized onions, then lay a slice of cheese over the top.
Cover the skillet 1 minute until cheese is completely melted. Serve the patties on top of toasted bread.
Press a small dimple into the center of each raw patty with your thumb — this prevents the burgers from puffing up like meatballs in the pan.