Grilled Cheeseburger with Caramelized Onions

Method

1. Preheat grill to medium-high heat.
2. Form ground beef into 4 equal patties and season with salt and pepper.
3. Place patties on the grill and cook for 4-5 minutes per side.
4. Add cheddar to each patty during the last minute of cooking.
5. Caramelize onions in butter over medium heat until golden brown.
6. Toast buns on the grill until golden brown.
7. Assemble burgers with onions, buns, and cheese.
8. Check that the ground meat reaches 71°C (160°F) throughout before serving.