01 -
In a mixing bowl, gently blend the ground beef with the Worcestershire sauce and garlic powder by hand until the seasonings are evenly incorporated. Avoid overmixing to preserve texture.
02 -
Divide the seasoned beef into 8 equal portions, approximately 57 grams each, and form into balls.
03 -
Heat a large cast iron skillet or flat top grill over high heat until extremely hot.
04 -
Arrange beef balls on the surface and firmly flatten each with a burger press or two large spatulas, making them wider than the buns, as they will shrink slightly during cooking.
05 -
Sprinkle the smashed patties with salt and pepper. Cook for 45-60 seconds, allowing the edges to brown and the tops to turn pale.
06 -
Flip each patty, season again with salt and pepper, then immediately top each with a slice of cheese. Quickly stack one patty on top of another to form 4 double patties.
07 -
Butter the cut sides of the hamburger buns. Toast on a skillet over medium-low heat until golden and crisp.
08 -
Place each double patty on a toasted bun. Top with lettuce, tomato, pickles, onion, and smash burger sauce as desired. Serve immediately.