Think of this dish as southern barbecue with an Asian twist. The pork is slow-cooked in a blend of hoisin and soy sauces and can be made a day or two before your gathering.
Chocolate, chili powder and cinnamon give this slowly cooked pork a distinctively rich and smoky flavor. Put the ingredients together in the morning, and you'll come home to irresistibly good pork to serve in warm tortillas.