Ancho chile

Ancho chile is the dried, fully-ripened form of the poblano pepper, a cultivar of Capsicum annuum whose name literally means «wide» — a reference to the shoulders of the pod, which spread into a broad flattened heart shape ten to fifteen centimetres long. The skin darkens to a wrinkled mahogany-burgundy, almost black when held flat but translucent ruby when lifted against light. Heat is modest, typically 1,000 to 2,000 Scoville Heat Units, placing ancho among the mildest dried chiles in the Mexican pantry and allowing cooks to layer two or three of them into a single pot without tipping into burn territory. The aromatic signature reads as raisin and prune up front, then coffee, tobacco, unsweetened cocoa and a whisper of dried fig on the finish — a profile driven by capsiate, damascenones, pyrazines and Maillard products formed during the slow sun-drying. Together with the mulato (a darker poblano cultivar dried to a deeper colour) and the pasilla (dried chilaca), the ancho forms the «holy trinity» of chiles used in mole poblano, where it carries the sweet-fruited top line. It is also the backbone of adobo marinades, birria broths, enchilada sauces and the brick-red stewing liquid of tinga de pollo. Cooks reconstitute it by toasting briefly on a dry comal, then soaking in hot water or stock until supple before blending.