This croque monsieur is a traditional hot sandwich made with thinkly-sliced ham ham and soft, melty cheese. Literally meaning “mister crunch” in French this sandwich makes a satisfying crunch as you bite down on the toasted bread.
(If you can not find Gruyere cheese, you need a cheese that melts well for this kind of sandwich. Substitutions would include Comte, Raclette, Emmental (“Swiss Cheese”), or possible Gouda.)
Try the “Ten Great Sandwiches” recipes page for more lunchtime ideas!
Heat a large griddle over medium heat. Prepare four ham-and-cheese sandwiches, spreading the mustard on one slice of bread for each sandwich. In a shallow bowl, beat eggs and milk together. Dip both sides of each sandwich in the egg mixture. Melt the butter and grill the sandwiches, flipping once.