Lima and the Peruvian coast (Moche civilisation pre-Incan origin; modernised in 20th-century Lima)
Peruvian ceviche is the world's most technically evolved acid-cooked fish preparation — raw fresh sea bass (lenguado) or corvina cut into bite-sized cubes, 'cooked' in leche de tigre (tiger's milk — a citrus marinade of fresh lime juice, ají amarillo paste, red onion, garlic, ginger, coriander, and the fish's own juices), mixed with thinly sliced red onion, and served within minutes of preparation. The lime juice denatures the surface proteins of the fish and acidifies the flesh to food-safe acidity, but unlike heat-cooking, it preserves the fish's texture and freshness. Leche de tigre is not merely the marinade — it is a complete dish in itself, served as a shooter as an opener before the main ceviche. The brevity of the cure (3–5 minutes maximum for traditional Lima-style) is what distinguishes Peruvian ceviche from other Latin American versions that marinate for hours.
Choclo (Andean giant corn kernels), cancha (toasted Andean corn), and camote (sweet potato) are the canonical sides — the starchy, sweet elements moderate the acid and provide textural contrast; leche de tigre is drunk first as an opener.
{"Freshness of the fish is the only quality variable: ceviche cannot correct mediocre fish and any lack of freshness is amplified by the acid.","Lime juice must be freshly squeezed: bottled lime has none of the volatile citrus oils that fresh lime provides.","The cure is measured in minutes, not hours: Lima-style ceviche is 3–5 minutes maximum — the texture must be sashimi-adjacent.","Ají amarillo paste provides the defining heat and fruity character that no other chilli replicates.","Leche de tigre is built separately from the remaining juices plus additional aromatics and served as a drink."}
Chill the fish cubes and the leche de tigre separately to 2°C before combining — the cold temperatures dramatically slow protein denaturation, extending the perfect window of cured-but-still-fresh texture from 3 minutes to 8 minutes, allowing proper plating without rushing.
{"Over-marinating: 30+ minute ceviche is a different product — tough, rubbery, fully denatured.","Bottled lime juice: the volatile aromatic oils that define ceviche's character are lost within minutes of juicing.","Substituting ají amarillo with generic orange chilli: the flavour profile is distinctive — there is no true substitute.","Cutting fish too large: 2–3cm cubes maximum for 3–5 minute cure effectiveness."}