Mastering the art of a smash burger is a lot easier than you think — even though it may seem scary, all you need are a few tips and tools to crush it. This recipe creates an amazing smash burger stack with thinly sliced onions (inspired by NYC's Gotham Burger) and a thin slice of melted cheese in the middle. The special sauce is made with a yogurt-base to add extra protein. The burgers are served in a lettuce wrap rather than a bun for a healthier alternative that is still super satiating.
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Technique Tip: To avoid a juicy mess, serve your burger in a parchment paper bag. To easily remove the patty from the skillet, use the back of a metal spatula or a bench scraper.
Swap Option: You may use mayo or sour cream instead of Greek yogurt. If using mayo, do not add water.
- 1/2 cup Greek yogurt
- 1/4 cup ketchup
- 2 tablespoons yellow mustard
- 2 tablespoons sweet relish
- 1 small clove garlic, peeled and grated
- kosher salt and freshly ground black pepper
- 2 heads iceberg lettuce, cored and leaves separated
- 1 large beefsteak or heirloom tomato, sliced into four 1/4-inch-thick slices and placed on a paper towel to drain (optional)
- 16 ounces ground beef, formed into 2-ounce balls
- 1 white onion, peeled and thinly sliced into rings
- 4 slices cheese, preferably American or cheddar
In a small mixing bowl, combine Greek yogurt, ketchup, yellow mustard, sweet relish, garlic, and 1 tablespoon of water. Season with salt and pepper to taste and set aside.2.
Add two stacks of two lettuce leaves onto 4 plates, totaling four per-plate — These will act as the bun. Top one stack of lettuce with optional drained tomatoes and set aside.3.
Place a large cast-iron skillet or stainless-steel skillet over high heat for 2 minutes until almost smoking. Place 2 beef balls in the skillet, top each with sliced white onion and, using a sturdy metal spatula and a second metal spatula or sturdy metal spoon, smash the beef balls into flat patties. Season with salt and pepper and cook until you can see a crust starting to form on the edges of the patty, about 1 minute.4.
Flip the burgers and top one with a slice of cheese. Take the other burger and place it on top of the cheese — the heat from the burger will melt the cheese. Transfer the burger directly onto two lettuce leaves, top with sauce and seal with remaining lettuce leaves. Repeat 3 times until all burgers are made.