Preparation:

Step 1: Divide the Beef into Patties

Start by dividing the 1 lb of ground beef into 4 equal portions. Gently shape each portion into a ball. Season the beef with salt and pepper to your taste.

Step 2: Heat the Skillet

Heat a skillet or griddle over medium-high heat. Add a little bit of oil or butter to the skillet to prevent sticking and to help achieve a nice crispy sear on the patties. The skillet should be hot before adding the beef.

Step 3: Form the Patties and Add Onions

Place each beef ball on the hot skillet. Press down on each beef ball using a spatula to form a flat patty. Immediately pile a generous handful of thinly sliced onions on top of each patty. Press the onions gently into the meat. This will allow the onions to cook down and caramelize, adding incredible flavor to the burger.

Step 4: Cook the Patties

Let the burgers cook for about 2-3 minutes, then flip them over carefully. The onions should have softened and started to caramelize by this point. After flipping, allow the burgers to cook for another 2-3 minutes, letting the onions continue to cook down. This process helps the onions meld with the beef, creating a flavorful combination.

Step 5: Add the Cheese and Toast the Buns

Once the burgers are cooked through, place a slice of American cheese on top of each patty. Cover the skillet with a lid for about 1-2 minutes to allow the cheese to melt. While the cheese is melting, toast the hamburger buns in the same skillet with a bit of butter or oil until they are golden and crispy.