8 slices white or sourdough bread
4 slices Gruyere cheese
4 slices smoked ham
2 tablespoons Dijon mustard
2 eggs
1/4 cup milk
2 tablespoons butter
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.