Cebiche de Mero al Estilo de Huanchaco (Grouper Ceviche)

In this dish, from Restaurante El Caribe, in Huanchaco, the fish is cut into irregular strips, not into the cube shape common in most of Peru. Like many northern Peruvian ceviches, the dish is not complete without its starchy sides of piping-hot boiled yuca, sweet potato, and large-kernel Andean white corn (available frozen in some Latin American markets).