Like carpaccio, ceviche (seh-VEE-chay) is a raw fish recipe that modern cooks just love to play with. It is essentially fish "cooked" in the acid of citrus juice and served with a cold beer on a hot day. The dish originates in Peru, and is thought to be a development from Spanish escabeche, which is a vinegar-marinated dish. This recipe is for the classic Peruvian ceviche. Ceviche is so sharp and acidic it cries out for beer and tortilla chips as an accompaniment -- although you won't find tortilla chips in Peru. In Peru, you will most often find this served with potatoes, either sweet or white.