Everyone wants the same thing from a tahini bun: layers that separate when it is cut. Those layers come not from the amount of tahini but from how the dough is worked.
How does tahini create layers?
The basic mechanism in layered doughs is always the same: creating a separation between dough and fat.
In a croissant butter does that. In baklava, starch does.
In a tahini bun, tahini does the job.
Tahini is high in fat and does not mix into the dough. Spread on the surface it forms a thin film.
When the dough is folded, that film prevents the two dough layers merging.
In the oven the water in the dough turns to steam, and that steam pushes the separated layers apart.
The result is the layers visible in the cut face.
The more evenly the tahini is spread, the more even the layers; wherever a gap is left, the layers stick together.
What should the dough ratios be?
Tahini bun dough is an enriched yeasted dough.
Water runs 55 to 60 percent of the flour weight. That gives a dough that can be rolled but still handled.
Fat runs 10 to 15 percent. That is the fat within the dough; tahini is added separately.
Sugar runs 8 to 12 percent, providing both flavour and colour in the oven.
Egg, one or two per kilogram of flour, supports the structure.
Milk can replace the water, giving a softer texture.
Yeast sits around 2 percent; in a high-sugar dough it is raised slightly because sugar makes the yeast's work harder.
Salt should not be forgotten; 1.8 to 2 percent, necessary even in a sweet dough.
How is the tahini mixture prepared?
Pure tahini is too thick to spread and does not distribute evenly.
It is therefore generally mixed with sugar and a little oil.
The classic ratio: two parts tahini to one part caster sugar.
If the mixture is stiff, a spoonful of oil is added; it flows better and spreads more easily.
Some recipes add cinnamon, which balances the faintly bitter note of tahini.
Versions with cocoa exist too, giving a different product in colour and flavour.
The mixture should be at room temperature; cold tahini tears the dough.
Too much sugar stiffens the mixture and it caramelises and runs in the oven.
| Component | Ratio | Function |
|---|---|---|
| Flour | 100% | Structure |
| Water or milk | 55-60% | Hydration |
| Fat (in dough) | 10-15% | Softness |
| Sugar | 8-12% | Flavour, colour |
| Yeast | 2% | Rise |
| Salt | 1.8-2% | Flavour, gluten |
| Tahini mixture | Separate | Layer separator |
How are rolling and folding done?
This step determines the number of layers directly.
The dough is divided into portions and each rolled thin, two to three millimetres.
The tahini mixture is spread evenly over the surface, leaving a centimetre clear at the edges; tahini at the edge escapes during rolling.
The dough is rolled up from the long side. It has to be rolled tightly; a loose roll opens in the oven.
The roll is held at both ends and twisted as it is stretched. That movement turns the layers into a spiral.
The roll is then coiled around itself and the end tucked underneath.
In some methods the roll is folded in two and plaited, which gives more pronounced layers in the cut face.
After shaping the bun is pressed lightly; pressing hard crushes the layers.
How should it be proved?
Tahini buns need two stages of proving.
The first comes after kneading: an hour to an hour and a half at room temperature, until the volume doubles.
At that stage the dough becomes rollable.
The second comes after shaping: forty-five to sixty minutes.
The second prove should be kept short. Over-proved buns collapse in the oven and the layers merge.
The finger test applies here too: pressed lightly, the mark should return slowly.
The dough should be covered while proving; a drying surface both prevents the rise and forms a hard crust in the oven.
28 to 30 degrees is ideal; above that the tahini begins to run.
What oven settings?
Tahini buns bake at 180 degrees for twenty to twenty-five minutes.
At a higher temperature the sugar at the surface darkens quickly while the inside stays raw.
In a convection oven the temperature should come down to 165 to 170.
The oven should be preheated.
An egg yolk wash gives colour; it goes on after the second prove is complete.
Scattering sesame is common, applied right after the egg.
The oven door should stay shut for the first fifteen minutes.
Doneness is judged by colour: deep golden. The underside should have taken colour too.
What are the common mistakes with tahini buns?
The first is spreading the tahini too thickly. Excess tahini weighs the layers down rather than separating them and the bun spreads.
The second is rolling the dough too thick. Thick dough gives few layers and no layered appearance develops.
The third is rolling loosely. The roll opens in the oven and the tahini runs out.
The fourth is over-proving. The bun collapses in the oven.
The fifth is baking too hot. The outside burns while the inside stays raw.
The sixth is using cold tahini. Cold tahini tears the dough and cannot be spread evenly.
The seventh is spreading tahini to the edges. It escapes during rolling and burns on the tray.
How does it behave in frozen production?
Tahini buns suit frozen production, with two points to watch.
In raw frozen production the buns are shaped and frozen; on the day of use they are thawed, proved and baked.
That method gives the best result, very close to freshly made.
With par-baked frozen product the process shortens but the layers compress somewhat.
Tahini is unaffected by freezing; the fat phase does not separate.
But the water in the dough crystallises during freezing, and the thin film between layers can be affected by those crystals.
Blast freezing reduces that risk; slow freezing damages the layers.
Frozen storage runs three to six months; beyond that yeast viability falls and raw frozen product does not rise enough.
Baked buns can be frozen too; thawed and briefly reheated they give an acceptable result.
