These garlic bread smash burgers are the mash-up weeknight dinners dream about: thin, crispy-edged beef patties with melted cheddar and sweet caramelized onions, tucked into buttery toasted garlic bread buns.
Smashing the beef flat in a screaming-hot pan gives you maximum crust in minutes, and the garlic butter buns do the job of both bread and sauce. One pan, one baking tray, dinner in about 35 minutes.
Ingredients
For the burger sauce
- 80 g (5 tbsp) mayonnaise
- 1 tbsp ketchup
- 1 tsp yellow mustard
- 1 tsp pickle brine
- 1/2 tsp smoked paprika
For the burgers
- 500 g (1 lb) ground beef, 80/20
- 1 tsp fine sea salt
- 1/2 tsp black pepper
- 4 slices cheddar cheese
- 1 large onion, thinly sliced
- 1 tbsp vegetable oil
- 8 dill pickle slices
For the garlic bread buns
- 4 brioche burger buns, split
- 60 g (4 tbsp) salted butter, softened
- 2 garlic cloves, finely grated
- 1 tbsp chopped fresh parsley
- 1/4 tsp garlic powder
Instructions
- Make the sauce: Stir the mayonnaise, ketchup, mustard, pickle brine and smoked paprika together in a small bowl. Set aside while you cook.
- Caramelize the onions: Warm the oil in a large cast-iron skillet over medium heat. Cook the sliced onion with a pinch of salt for 10 to 12 minutes, stirring often, until soft, sweet and golden at the edges. Tip the onions out onto a plate.
- Butter the buns: Mix the softened butter with the grated garlic, parsley and garlic powder. Spread it generously over the cut sides of the buns.
- Toast the buns: Toast the buns butter-side down in the same skillet over medium heat for 1 to 2 minutes until golden and crisp. Set aside.
- Divide the beef: Split the beef into 4 loose balls, about 125 g each. Do not pack them tight — loose balls smash into a better crust.
- Smash and sear: Turn the heat to high until the skillet just starts to smoke. Place a ball in the pan, press it flat with a heavy spatula or burger press to about 5 mm thick, and season with salt and pepper. Cook for 2 minutes without moving it, until the edges are deep brown and crispy.
- Flip and cheese: Flip the patty, cook 1 minute more, then top with a slice of cheddar and a spoonful of caramelized onions. Repeat with the remaining beef, working in batches.
- Build the burgers: Spread burger sauce on both halves of each toasted bun, add a cheesy patty and pickles, and press the top bun on. Serve immediately while the buns are still crisp.
Tips for the best result
- Use a cast-iron skillet or flat griddle — a non-stick pan will not give you the same crispy crust.
- Press straight down once and hold for 10 seconds; sliding the press around tears the patty.
- Keep the patties thin. A thick patty steams instead of searing and loses the lacy edges that make smash burgers special.
Storing and reheating
Store leftover patties and buns separately in airtight containers in the fridge for up to 2 days. Reheat patties in a hot dry skillet for 1 minute per side and re-toast the buns. The patties also freeze well for up to 1 month.
Frequently asked questions
Can I use lean ground beef for smash burgers?
You can, but 80/20 beef gives a far better crust and juicier burger. Lean beef dries out quickly when smashed thin.
What if I don't have a burger press?
A heavy flat-bottomed saucepan or a second skillet wrapped in foil works just as well. Press firmly and evenly, straight down.
Can I make these ahead for a crowd?
Yes. Caramelize the onions and mix the sauce up to a day ahead, then smash and cook the patties just before serving so the buns stay crisp.
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