From Kenji
Smash Burgers
Everything the backyard-grill rules taught you is backwards: you WANT the thin patty, and you WANT to press it into the pan as hard as you can. Maximum beef-on-metal contact in the first thirty seconds means a lacy, crackling crust a thick pub burger can't touch. Fifteen minutes, one hot pan.
20 minutes · Protein-forward · serves 2 · ~35g protein per serving (two patties each)
Ingredients
Equipment
cast-iron skillet or heavy stainless pan (not nonstick — it can't take the heat) · sturdy metal spatula (the stiffer the better) · second spatula or a small saucepan (for pressing) · small bowl (for the sauce)
The steps
- 1
- 2
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- 4
- 5
- 6
- 7
Cook Mode walks these one at a time, with timers and a way out when things go sideways.
The idea
Crust comes from contact. Smash once, early, hard, then never press again; pressing is only a sin after the proteins set.
Why it works · Kenji
- Smashing raw beef into smoking metal maximizes contact area, so the Maillard reaction builds a full crust in 90 seconds.
- Juices can't be 'pressed out' of proteins that haven't set — the smash window closes at ~30 seconds, which is why you smash once, immediately, and never again.
- Salting only the surface (never mixed in) keeps the grind loose and tender; salt worked into ground meat cross-links proteins into a springy sausage texture.
- A thin patty cooks through in the same time the crust forms, so ground-beef-safe and juicy stop being opposites.
- American cheese is an engineered emulsion — it melts into sauce instead of breaking into grease. This is one place the processed option is simply the right tool.
Side-by-side: patties smashed at 15 seconds vs. pressed at 2 minutes. The early-smash patty weighed the same after cooking — no measurable juice loss — and had roughly twice the browned surface. The late-press patty audibly wept into the pan. The myth isn't wrong about pressing; it's wrong about when.
Substitutions
- American cheese → young cheddar or Colby Jack. Best: American, for the melt. Good: Colby Jack. Fine in a pinch: cheddar — it'll go a little greasy where American stays creamy. All of them beat no cheese.
- potato buns → any soft, squishy roll — Hawaiian rolls make great sliders. The bun should compress. A crusty artisan roll fights the burger and wins, which is a loss for you.
- 80/20 ground beef → ground chuck from the butcher counter. Even better. What you don't want is 90/10 — the fat is doing the frying.
- burger sauce → plain mayo and ketchup in stripes, or nothing. A great crust needs no committee.
Tomorrow
- Cheeseburger quesadilla — chop a leftover patty into a tortilla with more cheese, toast in a dry pan. Kid-approved twice.
- Burger salad bowl — crumbled patty over iceberg, pickles, onion, and the leftover sauce thinned with a splash of pickle juice as dressing.
Cooked patties keep 3 days in the fridge. Reheat in a hot, dry pan so the crust comes back. The microwave makes steam.
Make ahead
The sauce holds for a week in the fridge, and the balls can be portioned in the morning and kept covered and cold. Don't smash ahead — the smash and the serve want to be minutes apart.
Keep it safe
- Ground meat gets cooked through, no pink: 160°F. Wash hands and board after shaping or handling it.
- The thin patty cooks through in the time the crust forms, so 'safe' costs you nothing here.