In my French husband's grandmother's generation, food waste was unthinkable. Nothing went to waste, especially not the baguette, that national pride that hardens after a day in the open air. So as not to throw anything away, Bonne-Maman Odile used to prepare these delicious cheese crusts, a very simple recipe that was unanimously appreciated around the table. Today, at the request of my eldest son, I'm sharing it in my electronic cookbook, so that my children, and perhaps yours, can continue to enjoy it.