Step 1

Brush the melted butter on the inside surfaces of the hamburger bun.

Step 2

On a pan or griddle over low heat, place each half of the butter-covered bun to toast, about 1-2 minutes on each side.

Step 3

While the bun is toasting, flatten each beef patty to about 1/4-inch thickness.

Step 4

Place the cheese in the middle of one patty.

Step 5

Cover the cheese-topped patty with the remaining patty.

Step 6

Push the patties together and pinch the edges, ensuring there are no holes for the cheese to seep through.

Step 7

On the same pan, over medium-high heat, cook the meat until it is cooked to your preference and cheesy juices start spilling out, about 5-10 minutes per side.

Step 8

Add the pickles to the bottom of the bun, followed by the onions.

Step 9

Top the onions with the cooked burger and the top bun.

Step 10

Serve, being careful as the cheese inside is very hot.