Nacatamal (Nicaragua banana leaf tamale)

Ingredients

• For the masa agria
• 1 kg nixtamalized corn (masa nixtamalizada), soaked in water 24–48 hours until slightly sour, then ground
• 150 g lard, worked generously into the ground soured corn
• 1 tsp salt
• For the filling
• 500 g pork shoulder, cut into large pieces, seasoned
• 100 g white rice, uncooked
• 200 g potato, peeled and sliced
• 150 g tomato, sliced
• 100 g white onion, sliced
• 12 prunes, whole, pitted
• 1 small bunch fresh culantro (broadleaf cilantro), leaves only
• 1 small bunch fresh mint, leaves only
• For wrapping
• 6–8 large pieces banana leaves, wiped clean, passed briefly over flame to soften and make pliable

Method

1. 1
   Begin the masa agria 24–48 hours ahead. Submerge the nixtamalized corn in cold water and leave at room temperature until the water smells and tastes faintly sour. Drain and grind to a smooth, slightly tacky dough. The dough should carry a distinct, clean tang on the tongue.
2. 2
   Work the lard and salt thoroughly into the masa agria, kneading until the fat is fully incorporated and the dough is cohesive, pliable, and noticeably richer than a standard tamale masa. A small ball pressed between the palms should hold its shape without cracking.
3. 3
   Season the pork pieces. Prepare all filling components: slice the potato, tomato, and onion; measure the uncooked rice; pick the culantro and mint leaves; set the prunes aside whole. All elements are assembled raw or minimally prepared — do not pre-cook the rice.
4. 4
   Pass each banana leaf section briefly over an open flame or hot burner until it turns a brighter green and becomes supple enough to fold without tearing. The leaf must bend without cracking — this is the test.
5. 5
   This is where the nacatamal lives or dies: lay a softened banana leaf on a flat surface and spread a generous, palm-sized layer of masa agria at the centre — the layer must be thick enough to fully enclose the filling without tearing. Arrange, in sequence, a piece or two of seasoned pork, a spoonful of uncooked rice, a slice of potato, a slice of tomato, a ring of onion, one or two prunes, and several leaves each of culantro and mint. The filling must be abundant; a thin or sparse filling is the dish's principal failure.
6. 6
   Fold the banana leaf over the filling, tucking the sides inward to form a tight, compact parcel. Fold again to double-wrap, then tie firmly with a thin strip of banana leaf or kitchen twine. The parcel should feel solid and resist compression — no gaps where steam could escape.
7. 7
   Place the parcels in a steamer or large pot fitted with a rack, layered seam-side down. Pour boiling water beneath the rack, cover tightly, and steam for approximately 1.5–2 hours, replenishing water as needed. The nacatamal is done when the masa has set firmly away from the leaf and the parcel feels rigid rather than soft when pressed through the wrapping.
8. 8
   Rest the nacatamales for five minutes before serving. Open the leaf at the table; the masa surface should be smooth, cohesive, and faintly glistening with lard. The rice inside will have cooked through, and the filling components will be tender and fragrant with herb and prune.