Patty Melt

Caramelized Onions

• 24 oz yellow onions, halved and thinly sliced
• ½ oz olive oil
• ½ oz brown sugar

Patties

• 20 oz sirloin steak, cut into pieces (1 in.), partially frozen, divided
• salt, to taste
• ground black pepper, to taste
• 4 slices Swiss cheese
  sau 4 slices cheddar cheese
• 8 slices rye bread, toasted