01 - Spread butter evenly on one side of each bread slice, ensuring complete coverage to the edges for even browning.
02 - Place two bread slices buttered side down on a clean surface. Top each with two cheese slices, then cover with remaining bread slices, buttered side up.
03 - Preheat a large skillet or griddle over medium heat for 2-3 minutes until evenly heated.
04 - Place sandwiches in the hot pan and cook for 3-4 minutes per side. Press gently with a spatula occasionally to ensure even contact with the cooking surface. Flip when golden brown and continue until both sides are crispy and cheese is fully melted.
05 - Transfer sandwiches to a cutting board and let rest for 1 minute to allow cheese to set. Cut in halves or quarters and serve immediately while hot.