Smash Burgers
The secret to a great smash burger is three-fold: the meat, the bun, and the sauce. Use high-fat ground meat, brioche buns, and a simple but delicious sauce like this truffle mayonnaise.

Ingredients
- Ground chuck (or other high-fat ground meat)400g
- Brioche buns2
- Yellow onion2
- Mayonnaise1.5 dl
- Truffle oilto taste
- Saltto taste
- Black pepperto taste
- Cheese slices (e.g. cheddar)4
- LettuceOptional
- TomatoOptional
Method
- 01
Thinly slice one onion and slow-cook on low heat until caramelized.
- 02
Make the sauce: Finely chop the other onion. Mix with mayonnaise, truffle oil, salt, and pepper in a bowl.
- 03
Prepare any fresh toppings like lettuce and tomato.
- 04
Form the ground meat into balls. Place in a hot pan and smash them flat.
- 05
Cook the patties on both sides. Place cheese on top to melt during the last minute of cooking.
- 06
Toast the buns.
- 07
Assemble the burger with sauce, patties, caramelized onion, and any other toppings.
