01 -
When ready to bake, preheat oven to 350°F.
02 -
Arrange six slices of bread in the bottom of a greased baking dish.
03 -
Top each piece of bread with a slice of cheddar cheese.
04 -
Place a slice of bread on top of each cheese slice to create sandwiches.
05 -
Whisk together egg yolks or eggs, milk, salt, pepper, and mustard in a bowl.
06 -
Pour the custard mixture over the sandwiches evenly.
07 -
Refrigerate until the bread has softened.
08 -
Bake for 1 hour or until the top is golden brown.