Smash Burger

Peel and thinly slice the red onion.

Cut the pickles into thin rounds.

In a bowl, add the ground beef. Season with salt and pepper, then mix well with your hands.

Shape two balls of ground beef per portion, using your hands.

Heat a drizzle of olive oil in a pan over medium heat. Add the meat balls and press them flat and thin with a spatula. Grill for 2 minutes on each side.

Add a slice of cheddar on one of the patties. Top with the second patty and add the second slice of cheddar on top. Cover and cook for 1 to 2 minutes.

Meanwhile, melt a knob of butter in a second pan over medium heat. Add the burger buns cut-side down and toast for 1 to 2 minutes, until golden.

Spread the burger buns with ketchup and mustard. Add the cheddar-topped patties, followed by the onion, pickles and lettuce. Close the burger and enjoy immediately. It's ready!