Why It Works Chipotles in adobo add smoky depth without a long ingredient list. Searing the thighs first builds browned bits and rendered fat that enrich the sauce. Chicken thighs stay juicier and more flavorful than breasts for a more satisfying filling. My co-workers and I have a semi-regular lunchtime tradition of hitting up our  favorite Mexican joint  for Fiesta Friday (or it could also be Mole Monday, Taco Tuesday, Oaxacan Wednesday, or Torta Thursday). I'm usually in for the double  al pastor —one in taco form, the other as a  sope . But when I feel like changing things up, I tend to lean toward the chicken tinga. Chicken tinga is the only taco stuffing on the menu that matches the complexity of al pastor, although it does it in a completely different way with its deeply smoky, spicy, and earthy flavor. It's completely satisfying, making a couple of small tacos taste like a larger, grander meal than they really are.…