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1
Combine the flour, yeast, salt, and rendered lamb fat or sesame oil in a large bowl, then add the lukewarm water and bring the mass together into a shaggy dough. Knead by hand for roughly 10 minutes until the dough is smooth, cohesive, and slightly tacky — the fat needs time worked into the flour to give the finished crust its characteristic short, rich chew rather than a lean, brittle snap. The dough is ready when a small piece stretches thin without tearing immediately.
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2
Cover the dough and allow it to rise at room temperature until doubled in volume, so the crumb opens enough to stay tender rather than dense after the fierce, rapid bake ahead. The surface should dome visibly and the dough hold a finger indent without springing all the way back.
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3
Divide into four equal pieces, then press and shape each into a round or oval 25–30 cm in diameter and 1.5–2 cm thick. Keep the border deliberately thicker than the centre so that, under the tonur's intense radiant heat, the rim traps enough moisture to puff and soften while the thin centre bakes dry and flat — the two textures in one bread that define the loaf.
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4
Using the chekish stamp, press the centre of each round firmly downward, driving it below the raised border and creating the domed ring that is the bread's visual signature, then follow immediately with the nail-studded pricking tool and perforate the centre all over so that escaping steam is channelled outward rather than lifting the centre into an uneven dome. The round should now show a clearly raised border encircling a flat, perforated disc.
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5
Brush the entire upper surface generously with water so the seeds have a wet, adhesive layer to fuse into during baking rather than sitting loose on a dry crust that will shed them against the oven wall. Scatter the chosen seeds — sesame, nigella, or poppy — over the wet surface and press lightly so they adhere; the surface must be visibly wet at this point.
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6
Bring the tonur to 400 °C or above on wood fuel, holding your hand near the opening briefly to confirm the heat is immediately fierce, because a wall that is merely warm will rob the bread of the sudden oven spring that blooms the rim and blisters the centre. Slap each round wet-face first against the inner clay wall with a single decisive motion — the wet surface grips the clay — and if the bread does not blister and show visible oven spring within 90 seconds, the oven was not ready and the bread will dry rather than bloom.
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7
Bake for 4–6 minutes from the moment of contact. The bread is done when the border is puffed and soft, the centre is flat, golden, and blistered, and the edges carry slight char from the direct wall heat. Remove with a hooked tool and tear the bread immediately — no raw dough should be visible in the cross-section of the centre.