Smash Burger

Set a cast-iron griddle or heavy skillet over the highest heat your stove will give. Let it preheat dry for at least 3 minutes — no oil, no butter yet. The surface temperature should reach 230–260°C. Smash burgers need maximum contact heat to drive the Maillard reaction before the beef can steam.

Place a loosely packed beef ball onto the hot, lightly buttered griddle. Season the top immediately with salt and pepper. Using a heavy spatula or burger press, press down with your body weight — hard, fast, and sustained for 10 full seconds. The goal is maximum surface contact. Do not move it. Cook undisturbed for 90 seconds. The edges will turn brown and lacey before the center.

Flip the patty with a thin, stiff spatula, dragging all the browned fond up with it. Immediately lay an American cheese slice on top. If doubling up (double smash), place a second smashed patty on top of the first, then cheese on top. Add a splash of water to the griddle edge and cover with a dome or lid for 15 seconds to melt the cheese with steam.

Split the bun and spread the cut faces with a thin layer of softened butter. Place cut-side down on the griddle or in a dry pan over medium heat. Toast for 60–90 seconds until golden and slightly crispy. The bun must be toasted — a soft untoasted bun collapses under the burger's moisture.

Dress the bottom bun with mustard and ketchup. Add a small pile of raw diced white onion. Place the cheesed patty on top. Crown it. Serve within 60 seconds — the window between perfect and sad is narrow. Wrap in paper if you need to transport it.