Classic American Cheeseburger with Grilled Onions

Method

1. Preheat grill or skillet to medium-high heat.
2. Form ground beef into 4 equal patties, season with salt and pepper.
3. Cook patties for 4-5 minutes per side for medium doneness.
4. Add cheese slices to patties during last minute of cooking.
5. In a separate pan, sauté sliced onions in butter until golden brown.
6. Toast hamburger buns lightly.
7. Assemble burgers with patties, cheese, onions, lettuce, pickles, and condiments.
8. Check that the ground meat reaches 71°C (160°F) throughout before serving.