Hubert Keller is the author of this wonderful recipe that is a tradition in his native Alsace. In Alsatian dialect, Baeckeoffe means "baker's oven." Traditionally, the women would prepare this dish on Sunday evening and leave it with the baker to cook in his gradually cooling oven on Monday while they headed down to the river to wash the family's clothes. The baker would seal the casseroles with leftover dough and on the way back with their clean clothes, the women would pick up their casserole and a loaf of bread.