# How to Make It:
01 - Arrange the bread slices on a clean surface.
02 - Spread a thin, even layer of mayonnaise on one side of each bread slice.
03 - If using, spread a thin layer of Dijon mustard on the opposite side of two bread slices.
04 - Place two slices of cheese between two bread slices, ensuring mayonnaise-coated sides face outward. Repeat for the second sandwich.
05 - Heat a nonstick skillet over medium-low heat.
06 - Place sandwiches in the skillet, mayo side down. Cook for 3 to 4 minutes until the bread turns golden brown.
07 - Flip sandwiches and cook the other side for 3 to 4 minutes, pressing gently with a spatula until golden and cheese is melted.
08 - Remove sandwiches from the skillet, let rest for 1 minute, then slice and serve immediately.