Double Patty Cheeseburger with Caramelized Onions

Method

1. In a large bowl, mix ground beef with salt and pepper. Divide into two portions and shape into patties.
2. Heat vegetable oil in a skillet over medium heat. Cook patties for 4-5 minutes per side until cooked to desired doneness.
3. In a separate pan, melt butter, add onion slices, and cook over medium heat until caramelized, about 10-15 minutes. Add brown sugar and stir.
4. Assemble burgers: place patty on bottom bun, add cheese, then second patty, caramelized onions, and toppings.
5. Check that the ground meat reaches 71°C (160°F) throughout before serving.