Aji bills itself as a Latin American restaurant, and its menu is a postmodern fusion of Peruvian, Mexican, Argentine, Cuban, Brazilian, Salvadoran and Caribbean influences, in varying degrees of authenticity. Although little on Aji's menu makes much classical sense, much of it is very good, offering a güero-friendly TripTik of cocina alta, a reiteration of ingredients and flavors that present Central and South America as a single place, possessed of a single, overarching culinary gestalt.