Bacalao a la Vizcaína

Basque Country, with the modern form codified in the 19th century in Bilbao (Vizcaya/Bizkaia province). Salt cod was the protein of choice because Basque ships had been fishing the Newfoundland banks since the 1500s and salting the catch on board. The choricero pepper — dried, sweet, not hot — is the regional marker; tomato is a later, contested addition — popularized with tinned tomato in the 19th century and rejected by purists.

Bilbao Sunday classic — salt cod desalted over 36-48 hours, simmered in a sauce of dried choricero peppers (no tomato in the strict Basque version, despite Mexican adaptations). The pulp is scraped from soaked dried peppers by hand.

Thick white salt cod loins poached in a deep brick-red sauce — onion-heavy, sweet from long cooking, no tomato in the strict Basque version. Served in earthenware with the sauce pooled around. Fish flakes apart in moist sheets. Bread is for the sauce. The dominant note is dried choricero pepper, smoky-sweet, not hot.

Choricero pulp is the sauce, not paprika powder. Dried peppers are rehydrated in warm water, the flesh scraped from the skin with a knife — that scraped pulp is what builds body and color. Onions are cooked very slow and very long (1–2 hours) until they collapse to jam. The salt cod must be desalted in cold water 36–48 hours with several water changes; rushed desalting tastes of brine and the dish goes hard.