1) Officially they are called "croute" bread.
2) Strictly translated it means "crust" in French (as in croûtons).
3) The easiest/best way to get it is
. . . slice French bread on a bias
. . . let it sit 1-2 days under a tea towel in on the counter *
. . . rub with a clove garlic
. . . drip on apple, quince or cherry brandy
. . . season with a medium dose of Black Pepper
4) After all, croute is actually stale bread.
2 slices cheese 5mm/0.2'' inch thick
* An alternative is to slice the bread and put it on a cookie grate in your ovean at 200ºF for 10-15 minutes. But this is not the same. All you did was make toast, not stale bread. (WARNING, USELESS FACT COMING) By the way, French Toast was first invented by poor French as a way to use stale bread by soaking it in eggs.