Ancho

• ancho

  Spanish — Mexico

  Ancho is the dried poblano. The fresh and dried names are different words for the same cultivar.

Sweet, fruity and faintly bitter, with only a mild warmth behind it. The bitterness is part of the character rather than a defect — it is what stops ancho reading as jam — and it is why toasting is a short operation: a scorched ancho becomes bitter in a way that cannot be balanced out.

Raisin and prune with a faint tobacco edge and something close to cocoa. Sweet rather than sharp, and quite unlike the aroma of any fresh chilli.

Deep red-brown to nearly black, wrinkled, wide and heart-shaped. Held to the light a good ancho glows red at the edges — a genuinely black one is more likely mulato.

Leathery and pliable rather than brittle, because the wall is thick and dries slowly. A pod that snaps is old; a good one folds. Rehydrated, it purées to a thick, smooth paste that gives a sauce body as well as flavour — which is a large part of why mole works.

• Capsaicin and dihydrocapsaicin — The mild pungency, at low concentration relative to most dried chillies.
• Sugars and Maillard products — Developed during ripening and concentrated by drying. The raisin and prune character is a consequence of ripening the fruit rather than anything drying adds.
• Capsanthin — The deep red colour, and what fades to dull brown in an old pod.

Stem it, shake the seeds out, and toast it in a dry pan for a few seconds a side — until it smells of raisin and puffs slightly, and no longer. Burnt ancho is bitter and there is no recovering it, which is why this step is described in seconds rather than minutes. Then soak in hot water for around twenty minutes and blend. The soaking liquid carries flavour and some bitterness, so taste it before deciding whether it goes into the sauce. Fry the resulting paste in a little fat before adding your liquid: that step is what turns a raw purée into a sauce, and skipping it is the commonest reason a home mole tastes flat.

Mole above all, and the adobos and red sauces that share its technique — toast, soak, blend, then fry the paste in fat before it becomes a sauce. Also enchilada sauce, birria, marinades for pork and beef, and, ground, a component of American chilli powder. It works with cumin, oregano, garlic, tomato, dark chocolate, cinnamon and allspice, and with pork, beef, chicken and beans.

• toasting — A few seconds a side in a dry pan, until it smells of raisin and puffs slightly. This is the step that makes ancho taste of something, and also the easiest to ruin — scorched ancho is bitter and unrecoverable, and the window is measured in seconds rather than minutes.
• infusing — Soaked in hot water for twenty minutes or so after toasting, then blended. The soaking liquid carries flavour and some bitterness; whether to use it is a judgement rather than a rule.
• grinding — Ground ancho exists and is useful in rubs, but the thick, slightly moist wall does not mill cleanly and the powder loses its fruit faster than the whole pod does.

Bend one. A good ancho folds like leather and springs back; an old one cracks or snaps. That single test tells you more than colour or smell, because pliability tracks the moisture that carries the aroma — and it is the one dried chilli test that works through a bag in a shop.

• Cracks or snaps rather than bending
• Dull brown rather than red at the edges when held to light
• Dusty smell with no raisin behind it
• Any white bloom or mould, which is a discard rather than a quality question

• Moisture loss, turning a pliable pod hard and brittle
• Moisture uptake in a humid cupboard, which can genuinely mould
• Fading of the capsanthin from red to dull brown
• Loss of the fruit aroma, leaving bitterness

Buy whole pods, and buy them by feel rather than by sight: a bag that folds is worth more than one that looks handsome and snaps. They are cheap, they freeze well, and the two-minute toast-and-soak is the whole technique. Ground ancho is a reasonable thing to own for rubs and a poor substitute for a rehydrated pod, because a large part of what ancho contributes to a sauce is body rather than flavour — a mole made with powder is thin in a way no amount of extra powder fixes.

• Pliable — it should fold, not crack.
• Deep red-brown, glowing red at the edges when held to light.
• Wide and intact, without splits or missing tips.
• No white bloom, which is mould rather than a natural coating.
• Check the label: dried poblanos are widely mislabelled pasilla in the United States.

Graded on size, colour, pliability and freedom from breakage. Ancho and mulato are distinguished by strain and colour in Mexican trade and are frequently sold interchangeably abroad, which matters for mole and rarely for anything else.

Solanaceae

The poblano cultivar of Capsicum annuum: a bushy annual bearing large, heart-shaped, thick-walled fruit that ripen from dark green through to deep red-brown.

Mexico, with the poblano cultivar associated with Puebla — which is where the name comes from.

• Mexico (Puebla, Zacatecas, Aguascalientes) — major producer. Zacatecas and Aguascalientes are the volume producers of dried ancho.
• United States (the Southwest) — notable producer
• China — notable producer. For export dried product.

Picked deep red at full maturity for drying. A green poblano dried is not an ancho — the sweetness that defines it develops during ripening, not during drying.

1. Ripening on the plant — Left until the fruit turns from dark green to deep red.Why: Sugars and carotenoids develop late. This is the step that makes ancho sweet rather than merely mild, and skipping it cannot be corrected afterwards.
2. Drying — Sun-dried in the field or air-dried, over days, until leathery and pliable rather than brittle.Why: Concentrates the sugars into the raisin and prune character. Thick-walled fruit dries slowly, which is why ancho stays flexible where a thin-walled chilli goes crisp.
3. Sorting and grading — Graded on size, colour, pliability and freedom from breakage and mould.Why: Pliability is the meaningful quality signal here, and the one a buyer can assess by hand.

Graded on size, colour, pliability and freedom from breakage. Mexican trade distinguishes ancho from mulato by strain and colour, though the two are frequently conflated in export.

The commercial issue is labelling rather than adulteration: dried poblano sold as pasilla in the United States, and ancho and mulato sold interchangeably. Both are naming problems that reach the cook rather than fraud in the usual sense.

Grown as an annual from transplanted seedlings. A grower decides between two products at harvest: pick green for the fresh poblano market, or leave to ripen red for drying.

Warm temperate to subtropical with a long dry period at the end of the season, which is what makes field drying possible.

Poblano is a Mexican cultivar named for Puebla, and drying ripe chillies for storage is a practice considerably older than European contact — the shared context for every dried Mexican chilli in this dataset rather than a fact specific to ancho. What is specific is the role: ancho is the base of the mole tradition, where several dried chillies are toasted, soaked and blended into a sauce whose complexity comes from the combination rather than from any one of them.

Mexico dominates production and consumption. Ancho is the most-used dried chilli in Mexican cooking by volume, and a substantial export trade supplies Mexican communities and restaurants abroad.