01 - Spread softened butter evenly on one side of each bread slice, ensuring complete coverage to the edges.
02 - Place two bread slices buttered side down on work surface. Layer each with two cheese slices. Top with remaining bread slices, buttered side up, to form sandwiches.
03 - Preheat large skillet or griddle over medium heat for 2-3 minutes until evenly heated.
04 - Place sandwiches in hot skillet. Cook for 3-4 minutes per side, pressing gently with spatula to ensure even contact. Flip carefully when golden brown. Cook until both sides are crisp and cheese is fully melted.
05 - Remove from pan and let rest for 1 minute to allow cheese to set slightly. Cut in halves or quarters and serve immediately while hot.