once upon a chef
• Ground chuck • Freshly ground black pepper • Garlic powder • Onion powder • Ground mustard • Worcestershire sauce • Vegetable oil, for cooking • Kosher salt • Cheddar cheese • Hamburger buns
Combine the beef, pepper, garlic powder, onion powder, ground mustard, and Worcestershire sauce.
Using your hands, mix until evenly combined.
Form the meat into 4 large meatballs, then pat each ball into a 1-inch-thick disc; smooth out the edges as best you can.
Refrigerate for 15 minutes and then season all over with kosher salt.
Place the burgers on a hot skillet and firmly smash them flat with a metal spatula Cook for a few minutes until brown and crusty on the bottom.
Top with the cheese and cook for 2 minutes more for medium-rare to medium burgers, or 3 minutes for medium to medium-well burgers.