Zacahuil (giant Huastecan pit tamale)

Ingredients

• 2 kg coarse-ground nixtamal masa, coarsely ground, not fine; consistency of very thick polenta
• 1.5 kg bone-in pork shoulder or ribs, cut into large pieces, bone retained
• 6 dried guajillo chiles, whole, stems trimmed; not blended
• 4 dried ancho chiles, whole, stems trimmed; not blended
• 8–10 large leaves banana leaves, wiped clean, briefly passed over flame to make pliable
• 30 g fine salt
• To serve
• 500 ml salsa (guajillo or tomato-based), served alongside
• 12 fresh corn tortillas, warm

Method

1. 1
   Heat the oven to 150 °C. Line a large, deep roasting pan generously with overlapping banana leaves, leaving sufficient overhang on all sides to fold over and seal the top. The leaves must cover every interior surface — no masa may contact bare metal during the long cook.
2. 2
   Season the masa with salt and work it briefly until incorporated. The mass should hold its shape when pressed but spread under a firm hand — the consistency of very thick polenta. Do not work it further; over-mixing tightens the texture and destroys the defining coarseness.
3. 3
   This is where the dish lives or dies: press half the seasoned masa into the banana-leaf-lined pan in an even layer approximately 4–5 cm deep. Distribute the bone-in pork pieces evenly across the surface, pressing them lightly into the masa. Lay the whole dried guajillo and ancho chiles — unblended, untorn — over and around the pork. Press the remaining masa over the top, enclosing the pork and chiles completely. The fat of the bone-in pork will baste the masa from within during baking; the whole chiles will rehydrate directly into the mass. Neither effect is recoverable if the pork is lean or the chiles are pre-processed.
4. 4
   Fold the overhanging banana leaves tightly over the surface of the masa, overlapping them to form a sealed parcel. Add a further layer of banana leaves on top if needed to close any gaps. The seal must be complete: the moisture trapped within is the only source of steam for the duration of the bake.
5. 5
   Bake at 150 °C for 8–12 hours, undisturbed. Do not raise the temperature to shorten the time — the exterior will over-bake before the dense interior sets. The zacahuil is ready when the banana-leaf parcel emits a deep, earthy, pork-rich steam on opening, the masa has pulled slightly from the leaf edges, and a skewer inserted to the centre meets firm, cohesive resistance rather than soft wet paste.
6. 6
   Open the parcel at the table or pass. Cut into portions with a large spoon or knife — the masa will be dense and sliceable. Serve hot with salsa and fresh tortillas as portioning aids.