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Traditional method

Jachnun (Yemenite Jewish overnight pastry)

Jachnun · Yemenite jachnun

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Jachnun is a rolled, butter-layered wheat pastry baked covered for hours at very low oven heat and served warm, often with grated tomato and schug.

Deeply golden, butter-layered jachnun rolls with a cut spiral end, served with grated tomato and schug.

History

Jachnun is identified as a Yemenite Jewish overnight pastry and Sabbath-morning food. The inspected sources document a living tradition and diaspora, but do not establish a first attestation date.

Ingredients

Yield 10 to 15 pieces · Scaling: source batch only

All-purpose flour
1040 g
8 cups in source
Brown sugar
55 g
5 tablespoons in source
Kosher salt
10 g
1 tablespoon in source
Water
600 mL
Begin with 600 ml; source allows up to 720 ml, plus more if needed, for a soft slightly sticky dough
Neutral oil
100 mL
½ cup in source; for dough balls and dish
Unsalted butterSoftened
227 g
1 cup in source; for stretching and layering
Dry bread (optional)
Amount not stated
2–3 slices; source uses this beneath parchment to absorb excess oil and protect the bottom layer

Method

Risks and precautions · Standard risk
Raw flour in dough

Uncooked flour can carry germs; do not taste raw dough, and clean hands, bowls and work surfaces after handling it.

Hazard source

Follow the source's covered 12–14-hour oven bake at 200°F (93°C) in an oven-safe pot with a lid. The separate slow-cooked-egg method is not included; cook any eggs separately using a tested egg method.

Control source

Refrigerate leftovers within 2 hours of baking (within 1 hour if exposed to temperatures above 90°F / 32°C) at 40°F / 4°C or colder.

Control source

Do not eat raw dough. Keep the low-temperature overnight bake distinct from cooking eggs; the cited family recipe uses a separate slow-cooked-egg method.

  1. Mix the flour, brown sugar and salt in a stand-mixer bowl. With the dough hook on low, slowly add 600 ml water. Add more, up to 720 ml, only as needed for a soft, slightly sticky dough that holds together. Knead on low for 10–15 minutes.
  2. Rub the dough with a thin film of neutral oil, return it to the bowl, cover, and rest for 30 minutes. Divide into 10–15 equal pieces and shape into smooth balls. Oil a 23 × 33 cm baking dish, arrange the balls in it, cover, and refrigerate at least 2 hours or overnight.
  3. Preheat the oven to 200°F (about 93°C). Use a medium oven-safe pot with a lid. Lay 2–3 slices of dry bread in its bottom if using, cover them with parchment paper, and keep the paper between the bread and the pastry.
  4. Working one chilled dough ball at a time, butter your fingertips and gently stretch the dough across a greased surface into a very thin translucent sheet, about 43 × 51 cm. Small tears are acceptable. Dab with softened butter; fold the sheet into a 10 cm strap, stretch the strap to about 13 cm wide, dab it again with butter, and roll it tightly into a log.
  5. Set the log in the pot. Repeat with the remaining balls, placing each new layer perpendicular to the one below. Cover the pastries with parchment. Sprinkle 2–3 tablespoons hot water over the parchment, then close the pot with its lid.
  6. Bake covered at 200°F (93°C) for 12–14 hours, until the pastry is deeply golden. Check every few hours; if it looks dry, add 1–2 tablespoons boiling water over the parchment and replace the lid. Avoid opening the pot more than needed.
  7. Serve warm with grated tomato and schug. The source also suggests hard-boiled eggs as an accompaniment; cook those separately rather than placing raw eggs in this low-temperature pastry bake. Refrigerate leftovers within 2 hours, or within 1 hour if the room is above 90°F (32°C), at 40°F (4°C) or colder.

Conditions

Yield10 to 15 pieces

Places

Yemen

Traditional preparation · Country evidence

Identified with Yemenite Jewish foodways; no more precise origin is established.

Israel

Documented preparation · Country evidence

A Yemenite Jewish family tradition documented in Israel; not claimed as the dish's origin.

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Sources