Classic Beef Burger with Crispy Onions

Method

1. Heat a skillet over medium heat and cook the ground beef until browned and cooked through
2. In a separate pan, melt butter and cook sliced onions until golden brown and caramelized
3. Toast the brioche buns
4. Assemble the burger with beef patty, cheddar cheese, caramelized onions, lettuce, and tomato
5. Check that the ground meat reaches 71°C (160°F) throughout before serving.