Food writer Troy Johnson is crossing America in search of his ultimate chocolate gold. In San Francisco, where the artisans of chocolate reign supreme, Troy signs up for chocolate 101 at the 'university' of his chocolate dreams, Recchiuti - creating delicious unconventional flavors. In Seattle he learns the science behind the world's most coveted bean, the cacao and how its chocolate flavored goodness might not be all that bad for us. Then it's off to Chicago, where Troy crosses paths with chocolate's savory side, enjoying influences from across the border and gets schooled on how to make Mexico's famous chocolate flavored 'mole' sauce.