INGREDIENTS
12
slices Bacon, thick-cut
1/4 cup
Dijon mustard
1 cup
Mayonnaise, good
1
Kosher salt and freshly ground black pepper
1
Pullman loaf or sourdough bread, white
6 tbsp
Butter, salted
6 oz
Cheddar, sharp
6 oz
Gruyere or comte cheese, aged
1/4 cup
Parmesan cheese