William Alexander can be compared to a crusader, a man on a quest for the holy grain. The acclaimed author of The $64 Tomato decided that for one year he would bake a loaf of bread a week. Not just any bread, and no croissant or dinner rolls, Alexander wanted to perfect a peasant bread he once tasted. In the course of his odyssey, he grows and grinds his own wheat, wins second place in a New York State Fair bread contest, and revises the art of bread making in a