🇺🇸 American Smash Cheeseburger

A smash burger is made by pressing a ball of beef flat onto a screaming hot griddle. The contact creates a lacy, crisp crust while the inside stays juicy. It is one of the best things you can do with a cast-iron pan.

Ingredients

• 600 g Fresh Ground Beef Chuck
• 4 Soft Brioche Hamburger Buns
• 4 slices American Cheese
• 2 tbsp Unsalted butter
• 4 tbsp Classic Burger Sauce
• 1 large Yellow Onion, thinly sliced
• Dill pickle slices and iceberg lettuce
• Fine Sea Salt & Coarsely Ground Black Pepper

Method

1. Divide beef loosely into 8 equal balls (75 g each). Chill.
2. Butter and toast brioche buns 2 min. Spread burger sauce.
3. Heat cast-iron skillet until smoking.
4. Place 2 beef balls on skillet. Press flat with heavy spatula until paper-thin. Season.
5. Cook undisturbed 2 min until edges are dark crispy brown.
6. Scrape underneath with metal spatula. Flip. Top with cheese. Cook 45 seconds.
7. Stack two patties. Transfer to bottom bun. Add pickles, lettuce, top bun. Serve immediately.

History

The smash burger is not a new invention — it has been a diner technique since the 1950s, when short-order cooks discovered that pressing a ball of ground beef onto a hot flat-top produced a faster, tastier burger than the thick patties of earlier decades. The technique was standard at diners and drive-ins across the American Midwest for decades before being rediscovered by the craft burger movement in the 2010s. Today it is one of the most imitated styles in the world, and chefs from New York to Tokyo have built entire restaurants around the method.

The science

The Maillard reaction — the browning that gives cooked meat its flavour — happens fastest when meat is in direct, intimate contact with a very hot surface. Pressing the beef flat maximises that contact, and the thinness of the patty means the interior cooks almost as fast as the exterior, so the whole thing is done in two minutes rather than six. The 80/20 fat-to-lean ratio is also essential: the fat renders on contact with the hot iron, frying the edges of the patty into a crisp, lacy crust while the interior stays juicy. Leaner beef dries out before it browns.

Substitutions

Ground chuck is the classic choice, but any 80/20 ground beef works. Ground bison, lamb, or a beef-and-pork blend are all excellent variations. For a plant-based version, use a high-fat plant-based mince — the technique works best with the fattiest option you can find, since lean plant-based meats will crumble rather than crisp. American cheese melts beautifully, but a young cheddar, gruyère, or even a slice of raclette all work well.

Chef's tip

80/20 beef ratio is crucial. The fat renders rapidly on the hot iron, frying the edges into a lacy, crisp crust.

Drink pairing

Cold pale ale or a thick vanilla milkshake. The bitterness of the beer cuts through the fat of the beef, while the milkshake leans into the diner classic — both are equally correct.