01 -
Divide the ground beef into 4 evenly sized balls. Preheat a cast iron skillet or griddle until it’s smoking hot.
02 -
Place beef balls on the skillet and season with salt, pepper, and 1 tsp of smashburger sauce. Add sliced onions on top. Use parchment paper and a spatula to smash the beef balls into thin patties.
03 -
Cook the patties until the edges are caramelized and crispy. Flip and top each patty with 2 slices of American cheese. Cook until the cheese melts and the internal temperature reaches 165°F.
04 -
Spread smashburger sauce on 4 slices of bread. On each slice, layer a cheesy patty, a few pickle chips, and a generous portion of shredded Havarti cheese. Top with another slice of bread.
05 -
Melt butter in a skillet over medium heat. Grill the sandwiches until golden brown and the cheese is fully melted, flipping once for even cooking.
06 -
Let the sandwiches rest for 1 minute before slicing and serving. Pair with extra smashburger sauce for dipping.