If there's a face of Mexico City's restaurant scene, it might be Jorge Vallejo's. (Of course, it may also be Enrique Olvera's, or Gabrielle Camara's ... who's counting?). Vallejo's cooking, found at his intimate restaurant Quintonil, has long been an inspiration for Rick and Deann. But what inspires Jorge? What propels him to put together dishes such as his stunning mole with beef tongue? In one word: Tacos. So in this episode, Rick follows Jorge on a taco tour, from the simple vegetable preparations at Tacos Gus to the super-rich and satisfying suadero-style tacos at Taqueria Los Cocuyos. Back in Chicago, Rick makes his own amazing tacos at home, complete with homemade tortillas.