Peru (pre-Columbian coastal tradition); lime adoption post-Spanish contact; modern Peruvian ceviche codified in Lima c. 20th century.
Ceviche is inherently, completely gluten-free — raw seafood cured in citrus with aromatics and garnish contains no gluten whatsoever. This makes it one of the most accessible and elegant naturally gluten-free preparations available in restaurant dining, where many other 'light' preparations are contaminated through sauces, marinades, or breadings. The Peruvian preparation — the most celebrated version — uses sea bass (corvina), lime juice, aji amarillo, red onion, coriander, and leche de tigre. The understanding that gluten is absent is valuable to coeliac diners, but the more important message is that ceviche demands quality of ingredient over technique of accommodation. The fish must be sushi-grade. The lime must be freshly squeezed. The aji amarillo must be fresh or from a quality paste. Gluten-free ceviche that uses inferior ingredients remains an inferior dish; gluten-free ceviche made with quality is simply excellent ceviche.
Sushi-grade fish is non-negotiable for raw preparations — ceviche does not cook through heat; parasite risk requires quality sourcing Freshly squeezed lime juice only — bottled lime juice has been heat-treated and lacks the volatile aromatics of fresh Contact time is product-specific: thin-sliced delicate fish (2–4 minutes); thicker cuts (8–12 minutes); tuna longer Leche de tigre prepared separately and tasted independently before adding fish — it should be balanced and delicious on its own Red onion must be soaked in cold salted water to remove sharpness — raw onion without this step dominates Serve immediately — ceviche cannot be held; it deteriorates within minutes of optimal cure
The 'tiger's milk' (leche de tigre) left in the bowl after eating the ceviche is prized — often served separately as a shot or digestif For the deepest flavour: add a small piece of fish to the leche de tigre and blend before straining — it emulsifies the proteins into the liquid and adds body If aji amarillo paste is unavailable, habanero with a pinch of sugar approximates the fruity heat
Non-sushi-grade fish — ceviche does not kill parasites; sourcing is a food safety issue, not a preference Bottled lime juice — flat, lifeless, no volatile aromatics; fresh only Over-curing — chalky, dry, tough protein; worse than under-cured Ignoring the garnish — choclo (Peruvian corn), sweet potato, and crunchy elements are structural, not optional Preparing in advance — ceviche held more than 20 minutes loses its essential character