Bacon Cheeseburger

In a small bowl, combine ketchup and mayonnaise. Set aside until ready to use.

Divide ground beef into equal pieces (6 ounces each), Form patties and place on parchment paper. Season both sides with salt and pepper.

Preheat griddle pan and olive oil. Cook beef patties (4 minutes each side). Cook bacon on the griddle pan at medium heat.

Once one side of the burger is cooked, flip and place cheese on top. Cover with a lid until cheese melts.

While cooking the meat and bacon, melt butter in a medium skillet and add onion. Season with salt and pepper. Let it cook at low/medium heat for 10 minutes, stirring occasionally.

Let the meat rest on a cooling rack for about 2 to 3 minutes.

While meat is resting, spread some butter or mayonnaise on the buns. Toast on a skillet or griddle pan for about 2 to 3 minutes.

Using the back of a spoon, spread some of the ketchup and mayo sauce into the bun. Place beef patty on the base of the halved buns. Add the caramelized onion, bacon, tomato slice, and lettuce.