Bacon Cheeseburger

Cut the onion in half, then slice it into strips.

In a very hot pan, add the bacon slices and grill for 2 minutes on each side over high heat. They should become almost crispy. Transfer to a paper towel.

In the same pan, add a knob of butter. Cut the burger buns in half, then toast them cut-side down for 2 minutes over high heat.

In the same pan, add a knob of butter, then cook the beef patty on one side for 2 minutes over high heat. Season with salt and pepper. Flip it and cook for 2 minutes on the other side. Season with salt and pepper, then add the cheddar. Cover, turn off the heat and continue cooking for 1 minute.

Make the sauce by mixing the mayonnaise with the ketchup.

Assemble the buns by spreading the sauce on the base. Add the lettuce, the patty with melted cheddar, the bacon slices, the red onion and close the burger. It's ready!