Classic White Castle-Style Burger

Method

1. In a large skillet, heat vegetable oil over medium heat. Add onion and garlic, sauté until softened.
2. Add ground beef, breaking it up with a spoon. Cook until browned, then season with salt and pepper.
3. Form the beef mixture into 4 equal patties. Cook on a grill or skillet until desired doneness.
4. Assemble each burger with a patty, cheese, tomato, lettuce, ketchup, and mustard.
5. Serve on small burger buns.
6. Check that the ground meat reaches 71°C (160°F) throughout before serving.