Smash burgers are the best burger most people can make at home, because the technique does the work. Smashing a loose ball of beef onto a screaming-hot surface maximizes contact between meat and metal — and that contact is what creates the lacy, crispy crust that makes a smash burger taste the way it does. This is your hub for every piece of it.
Preheat cast iron or a griddle for a full 8–10 minutes to roughly 425–475°F (220–245°C). A drop of water should skitter and vanish instantly. This is the single most important step — a cool surface steams the meat gray instead of searing it crisp.
Portion 80/20 beef into loose ~2 oz (57g) balls. Do not pack them tight — compacted meat smashes into dense, rubbery patties and loses the craggy edges. Keep the balls cold until they hit the heat.
Place a ball on the hot surface, lay parchment over it, and smash hard and flat for a full 10 seconds. You have about a 30-second window before the beef sets — commit. Then season the top with salt and pepper.
Leave the patty untouched for about 2 minutes. The crust needs that time to form and release on its own. Poke or flip early and you tear the crust off — which is the whole burger.
When the edges are deep brown and lacy, scrape under with a thin, stiff spatula to keep the crust attached, then flip. Lay cheese on immediately; it melts in under a minute. Verify the patty reaches a safe 160°F (71°C).
Toast the cut sides of a potato bun in the rendered beef fat until golden, then build and eat right away. A smash burger waits for no one.
The complete technique: the science, the gear, the beef, the method.
Open →The seven errors between a lacy crust and a gray hockey puck.
Open →Why American wins, the runners-up, and exact melt timing.
Open →How big to roll them — and why thin beats thick every time.
Open →The screaming-hot target that makes or breaks the crust.
Open →The classic single/double smash, step by step.
Open →Two thin patties, cheese in the seam — the sweet spot.
Open →Paper-thin onions smashed straight into the patty.
Open →A flat-top griddle or heavy cast iron skillet — both hold the high, even heat that creates the crust. Avoid thin pans that lose their heat the moment cold beef lands.
About 2 oz (57g) each, rolled loosely — they smash to roughly a 4-inch patty. Two thin patties beat one thick one because thin patties carry more crust. See our ball weight guide.
Almost always the surface isn't hot enough or wasn't preheated long enough, the beef was packed too tightly, or the patty got moved before the crust formed. Get it to 425–475°F (220–245°C), keep the beef loose, and don't touch it for two minutes.
American — it melts fast, smooth, and completely in the short window a thin patty gives you, and its mild flavor lets the crust shine.