Cheeseburgers With Caramelized Onion - cooking recipe

Ingredients

1 lb ground beef
2 tbsp olive oil
2 None white onions, peeled and thinly sliced
1 tbsp light brown sugar
2 tbsp balsamic vinegar
4 slices cheddar cheese
4 None hamburger buns, split
1 None tomato, sliced thinly
8 leaves butter lettuce
4 None dill pickles, thinly sliced
None None Yellow mustard, to serve
None None Ketchup, to serve

Preparation

Place the beef in a bowl and season, then shape into 4 patties. If using a grill, preheat.
Heat the oil in a large frying pan and cook the onion, stirring, until soft. Add the sugar, vinegar and 2 tbsp water and cook, stirring, until the onion is caramelized.
Cook the beef patties on the grill or a heated, oiled frying pan until cooked to desired doneness. Top each burger with a slice of cheese during last minute of cooking.
Meanwhile, toast the buns, cut-sides down, on the grill or an oiled frying pan.
Divide the burgers, caramelized onion, tomato, lettuce and pickle among the buns and serve with mustard and ketchup.