Ceviche with Coconut and Ginger

The best, most interesting ceviches in the world come from Peru, specifically Lima. Peru is blessed with three completely different geographies—coastal, Amazonian, and highland, with a different ecosystem—and cuisine—for each. Peruvian chefs create ceviches using exotic fish from the coast, potatoes and corn from the highlands, and wonderful tropical flavors and ingredients like hearts of palm from the Amazon region. Typical of a ceviche, the snapper in this taco filling is cooked not with heat, but by chemical action of the acid in the citrus juices. True red snapper, one of the great fishes of the world, is very expensive and rare, distinguished by its large head and red flesh. Most fish that is sold as snapper is actually rock cod or some other rockfish and does not have the subtlety of the genuine article. If you can’t get true snapper (you can tell only by seeing the whole fish, with its bright red and pale yellow markings), striped sea bass or halibut will work well. Candied ginger makes a nice garnish.