Gently form the ground beef into four equal patties, slightly wider than the buns. Do not overwork the meat. Press a small dimple into the center of each patty to prevent bulging during cooking.
Season both sides of the patties generously with salt and pepper.
Heat a cast iron skillet or grill to medium-high heat. If using a skillet, add a small amount of neutral oil if your meat is very lean.
Cook the patties for 3 to 4 minutes per side for medium-rare, adjusting time for your preferred doneness. Do not press down on the burgers while cooking.
During the last minute of cooking, place one slice of American cheese on top of each patty. Cover the skillet or close the grill lid briefly to help the cheese melt quickly.
While the burgers cook, spread a thin layer of softened butter on the cut sides of the hamburger buns. Toast the buns in a separate pan or on the grill until lightly golden brown.
Assemble the cheeseburgers: Place the cheesy patty on the bottom bun. Add your desired toppings like lettuce, tomato, onion, and condiments. Top with the toasted top bun.
Notes
For the juiciest burger, use ground beef with at least 20% fat content.
If you are looking for simple meal planning ideas to go with your burgers, consider pairing them with a quick side salad instead of fries.
Toasting the bun prevents it from getting soggy from the burger juices.