This is a smash-style double cheeseburger built to match what Five Guys actually puts on the tray: two thin 80/20 beef patties, American cheese melted between them, grilled onions, and the full condiment lineup on a toasted sesame potato bun. The honest reason to make it at home is control — you pick the beef, you control the sear, and you eat it the second it comes off the griddle instead of out of a bag.
The technique that matters
The smash is everything here. The moment a loosely packed ball of 80/20 chuck hits a screaming-hot cast iron or griddle, you press it flat and hold it for about 10 seconds. That direct contact maximizes the browned, slightly crispy crust that makes this burger taste like it does — not a steamed puck, but something with real texture. Cook the grilled onions on the same surface right alongside the patties. They pick up the beef drippings, which is exactly what you want, and you avoid dirtying a second pan.
Mistakes to avoid
- Using cold patties straight from the fridge: Cold meat drops the pan temperature fast and you lose the sear. Let the balls of beef sit at room temperature for about 15 minutes before they hit the griddle.
- Moving the patty before the crust releases: If it sticks when you try to flip, it’s not ready. Give it another 20–30 seconds. A proper crust will release cleanly on its own.
- Skipping the foil rest: Wrapping the finished burger loosely in foil for 60–90 seconds lets the cheese finish melting and the bun soften just enough to hold everything together without falling apart on the first bite.
- Toasting the bun too early: Toast it right before assembly. A bun that sits cut-side up for five minutes goes from crisp to dry, and dry bread is the fastest way to ruin an otherwise good burger.
- Over-seasoning the meat before smashing: Season the top of the patty after it’s smashed, not before. Salt draws out moisture; if you season too early the surface steams instead of sears.
Keeping and reheating
A built burger doesn’t keep well — the bun goes soggy fast. If you know you’ll have leftovers, store the cooked patties separately in an airtight container in the fridge for up to 3 days. Reheat them in a dry skillet over medium heat for about 2 minutes per side until they hit 160°F (71°C) internally, then build fresh. Raw formed patties can be frozen flat on a sheet tray, then transferred to a zip bag, for up to 2 months — cook from frozen on a hot griddle, adding about 2 extra minutes per side, and verify the internal temperature before serving.
Five Guys-Style Hamburger
Ingredients
For the Patties:
- 1 lb fresh ground beef (80/20) use freshly ground chuck with at least 20% fat for optimal juiciness
- ½ tsp kosher salt
- ¼ tsp freshly ground black pepper
For the Assembly:
- 2 pieces sesame seed hamburger buns preferably potato buns for authenticity
- 4 slices American cheese use high-quality deli cheese for better melt and flavor
- 1 small onion finely chopped
- 1 medium ripe tomato sliced
- 2 leaves crisp iceberg lettuce washed and torn
- 2 tbsp mayonnaise
- 2 tbsp ketchup
- 2 tbsp mustard
- 2 pieces sour dill pickles sliced lengthwise
Instructions
- Divide the ground beef into four equal portions (4 oz each). Form into loosely packed balls without compacting them too much to retain tenderness.
- Heat a large cast-iron skillet or griddle over medium-high heat until very hot (about 400°F / 200°C). No oil is needed due to the fat content of the beef.
- Place two balls of beef onto the hot skillet and immediately smash them flat with a heavy spatula or burger press. Sprinkle with salt and pepper.
- Cook undisturbed for 2–3 minutes until a crust forms and juices appear on the edges. Flip, place a slice of cheese on each patty, and cook for another 1–2 minutes until the cheese melts. Repeat with remaining patties.
- Meanwhile, toast your hamburger buns cut-side down on the skillet for about 1 minute until golden and lightly crisped.
- Assemble the Burger: Spread mayo on the bottom bun, top with lettuce, tomato, and pickles. Stack two patties (double cheeseburger style), then add grilled onions. Finish with ketchup and mustard, then top bun.
Notes
- For extra indulgence, wrap the finished burger in foil and let it rest for 1–2 minutes before serving. This helps meld the flavors just like in the restaurant.
- Add crispy bacon or sautéed mushrooms for a gourmet touch.
Nutrition
FAQ
Can I use a regular skillet instead of a cast iron griddle?
Yes, but cast iron holds heat better when the cold beef hits it, which gives you a stronger sear. If you use stainless or nonstick, preheat it longer than you think you need to — at least 3 minutes over high heat before the first patty goes in.
What fat ratio should the ground beef be?
80/20 (80% lean, 20% fat) is the right call for this style of burger. Leaner beef like 90/10 won’t give you enough fat to form a proper crust and the patties will taste dry, especially at the thinness a smash produces.
How do I know when the burger is done without cutting into it?
Use an instant-read thermometer — ground beef needs to reach 160°F (71°C) at the center. Because these patties are smashed thin, they cook fast, usually 2 minutes per side on a properly hot surface, but thickness varies so the thermometer is the only reliable check.
Can I prep the grilled onions ahead of time?
You can cook them up to 2 days ahead and refrigerate them in a small container. Reheat them in the same pan you’re using for the patties — they’ll warm through in about a minute and pick up a little extra flavor from the beef fat already in the pan.
Try these next
- Five Guys Bacon Cheeseburger
- Five Guys BLT Smash Burger
- Five Guys Cajun Burger
- Perfect In-N-Out 2×2 Copycat