Pasilla

The Pasilla is the dried form of the Chilaca pepper, a long, slender Capsicum annuum traditionally grown in the highlands of central Mexico. The name "pasilla" comes from the Spanish "pasa" - meaning raisin - a reference to the dark, wrinkled, raisin-like appearance the chilli takes on after drying. The fresh-form name "chilaca" derives from the Nahuatl "chilcoztli", meaning "old chilli", another reference to the dark colour. In traditional Mexican cuisine, the Pasilla forms one of the "holy trinity" of dried chillies for mole sauces, alongside the ancho (dried Poblano) and the mulato (dried ripened Poblano). Each contributes a different note: anchos bring sweetness and fruit, mulatos add chocolate and tobacco, pasillas contribute deep berry notes, smokiness, and structural earthiness. The combination is the foundation of mole negro, mole poblano, and dozens of other regional mole variations. The Pasilla suffers more than most Mexican chillies from name confusion. In northern Mexico and the United States, the dried Poblano (correctly called ancho) is sometimes mislabelled as "pasilla" in markets and cookbooks. The result is recipes calling for "pasilla chiles" that require the substitution decoded from regional context. The true Pasilla is the dried Chilaca, full stop - though commercial labelling rarely respects this distinction. In Oaxaca, a regional variant known as Pasilla de Oaxaca is smoked rather than simply sun-dried, producing a chilli with stronger smoky character used in Oaxacan moles - genetically the same chilli, processed differently to suit the region's smoke-led flavour traditions.