Parmesan cheese, grated
Romano cheese, grated
Slice Italian bread into slices about ½-inch thick. Allow at least two slices per person.
Butter very lightly with sweet (unsalted) butter.
Cut very, very thin slices of cheddar cheese. Place these on bread slices.
Sprinkle garlic salt on ever so lightly.
Shake grated Parmesan on next, making sure to cover cheddar with a fine mist.
Top with a tiny, even shake of Romano (not very much!). The secret is to evenly distribute all the ingredients, keeping each one as light as possible.
Place on the top rack of the oven under a hot broiler for just a few minutes, until cheeses bubble and turn golden around the edges.
This makes a great midnight snack too.