Aguachile: what it is, history and the spicy seafood recipe from Sinaloa

What is it?

Aguachile is a preparation of raw seafood cured in a salsa of lime juice, fresh ground serrano chilli, coriander and salt, originating in the state of Sinaloa, on the north-west coast of Mexico. The classic version uses raw prawns butterflied open, marinated for 5 to 10 minutes in the green aguachile, and accompanied by cucumber, red onion in fine half-moons and slices of avocado. It is served cold on maize tostadas or in a deep dish. Today there is also red aguachile (with chile de arbol or chiltepin) and black aguachile (with Maggi sauce, soy sauce or squid ink). It is one of the dishes of the Mexican Pacific that has most conquered restaurant menus over the last twenty years.

Origin and history

Aguachile began as a ranch dish in the Sinaloa highlands, where it originally contained no seafood: it was a quick salsa of chiltepin chilli ground in a molcajete with water and salt, into which dried venison or cecina was dipped to rehydrate it and give it flavour. Hence its name, literally "chilli water". When the recipe came down to the Sinaloan ports (Mazatlan, Topolobampo, Altata) in the mid-20th century, the fishermen replaced the dried meat with fresh raw prawn, abundant in the Gulf of California, and added lime and cucumber. The modern version, with coriander and green serrano chilli, became established in the seventies and eighties and gained national popularity in the nineties. In the last decade, chefs such as Enrique Olvera, Gabriela Camara and the Aguilar brothers have taken it into international fine dining, making it one of the great modern Mexican culinary ambassadors.

Characteristic ingredients

The essential ingredients of green aguachile are: large raw prawns (ideally from the Pacific, butterflied open and cleaned), Mexican lime juice (key to the acid curing), fresh serrano chilli, coriander, salt and water or ice. The prawn is never cooked with heat: the citric acid denatures the proteins and "cooks" it cold, a phenomenon called chemical coagulation. The salsa is ground in a molcajete or blender until the chilli and coriander are well combined. The obligatory garnishes are cucumber in half-moons, red onion and avocado. In red aguachile the serrano is replaced by ground chiltepin or dried chile de arbol and tomato is added. The black version has Maggi sauce, Worcestershire or soy sauce, and in signature versions squid ink. The optimal season is from March to June, when Pacific prawn is at its largest size.

Cultural significance

Aguachile is one of the gastronomic symbols of Sinaloa and of the cooking of the Mexican Pacific. It appears on practically every seafood restaurant menu in Mazatlan, Culiacan and Los Mochis, and has spread to tourist destinations such as Puerto Vallarta, Playa del Carmen and Tulum. It is a common dish at weekend family gatherings and is part of the Mediterranean-Mexican diet of the coast. Economically, it has boosted the Sinaloan prawn industry, which produces roughly half of the country's farmed prawn, and there are festivals such as the Aguachile Fest in Mazatlan and Guadalajara. The cooking of aguachile has been reviewed by The New York Times, Eater and Saveur, and Mexican chefs have presented it at international festivals such as Madrid Fusion and The World's 50 Best, contributing to the global recognition of Mexican seafood cooking alongside ceviche.

Frequently asked questions

What is the difference between aguachile and ceviche?

Ceviche is traditionally cured for 20 to 60 minutes in lime with onion and is served more cooked, almost opaque. Aguachile is cured for barely 5 to 10 minutes, ending up translucent and almost raw in the centre. In addition, aguachile has fresh ground chilli in the salsa itself, not separately, which gives it its characteristic immediate green heat.

Is aguachile spicy?

Yes, considerably. Traditional green aguachile uses serrano chilli without removing the veins, which produces an intense herbal heat. The red versions with chiltepin are even spicier. Some restaurants offer "mild aguachile" with less chilli, but the classic Sinaloan version aims for a heat that clears the palate and refreshes.

Can you eat aguachile while pregnant?

It is not recommended. The prawn is not cooked with heat but with acid, which reduces but does not completely eliminate bacteria and parasites such as Vibrio or anisakis. Mexican and US obstetric guidelines advise against raw fish and seafood during pregnancy because of the risk of toxoplasmosis and listeriosis.

Where does aguachile come from?

From Sinaloa, on the north-west coast of Mexico. It began as a highland dish of dried meat with chiltepin chilli and water, and was transformed into a seafood dish when it came down to the ports of the Gulf of California (Mazatlan, Altata, Topolobampo) in the mid-20th century, reaching its current form around 1970.