Starch binds more strongly and more clearly: use half as much, but expect it to set firmer as it cools.
Gluten-free
Coeliac disease affects roughly one person in a hundred in Turkey, and for them a gluten-free diet is not a preference but the treatment itself. This section does not say "it can be made gluten-free": it says which dishes already are, which become so with one change, and which never will.
12 dishes in the database satisfy it.
Gluten is the elastic web that gliadin and glutenin, the proteins in wheat, barley and rye, form when they meet water. In coeliac disease the problem is not flavour but immunity: gliadin triggers an immune response against the villi of the small intestine and absorption fails. The threshold is very low — the international standard for "gluten-free" is 20 parts per million, so even a stray pinch of flour in a pan counts.
Shop-bought tomato paste, yeast, baking powder and some molasses carry a real risk of wheat contact during processing, so the label matters. In Turkish cooking the genuinely hidden sources are: yufka, erişte, tarhana (most are wheat based), the breadcrumb in köfte, the flour thickening a soup, stock cubes, soy sauce, beer, and frying oil that has already fried something floured.
What replaces it, and what that costs you
Without gluten there is no net to hold the gas. Psyllium or xanthan takes over that job; without one the dough falls apart and the bread crumbles.
Buckwheat, despite the name, is not wheat and contains no gluten; it is the closest stand-in for bulgur in a kısır.
Pulse pastas break down faster: taste two minutes before the packet says, and always keep the cooking water.
Ground hazelnut both binds and browns, but it never goes on a table where someone has a nut allergy.
Dishes that qualify
This is not a list of things that work if you modify them. Under each dish is the reason it qualifies: some as they are, some in one of their own forms, some only once you have read the packet. A dish with an ingredient we cannot verify is left out, because a wrong badge is a health risk.
Mezze 2

Cacık
A Turkish mezze of yoghurt, cucumber, garlic, salt, water and olive oil. A hot-weather dish whose consistency runs from thick enough to spoon to loose enough to drink — both are correct, and it varies by region.

Haydari
A thick mezze of strained yoghurt, garlic and herbs. One thing separates it from cacık and it is decisive: haydari has no cucumber and the yoghurt is strained, so a spoon stands up in it.
Mains 1
Drinks 3

Ayran
Yoghurt let down with water and salted. Turkey’s national drink, and really yoghurt made portable: on the move it both slowed spoilage in heat and replaced the salt lost through sweat.

Churn buttermilk
Not to be confused with ordinary ayran — it is a different substance: the liquid left after butter has been churned out of yoghurt. Yoghurt destined for butter is deliberately fermented longer, which is why churn ayran is markedly sourer.

Kefir
A tangy, slightly effervescent fermented milk drink made with kefir grains — cauliflower-like living granules of bacteria and yeasts in a polysaccharide matrix, recovered and reused.
Preserving & fermentation 4

Strained yoghurt
Yoghurt drained in a cloth bag to remove the whey. The base for mezes, and the terbiye of toyga and düğün çorbası.

Dried yoghurt balls
Skimmed yoghurt or churn buttermilk is strained, kneaded hard with salt, formed into egg-sized balls and sun-dried until rock hard. It rehydrates into a sour paste or is grated into soups.

Çökelek
The curd that precipitates when de-fatted ayran or churn buttermilk is heated. In some regions it is made from whey instead, so çökelek is a product class defined by its acid-and-heat coagulation rather than by one starting material.

Keş
A hard cheese made from strained yoghurt and put through a ten-day drying. Bolu keş comes in blocks; the related katık keşi is shaped like a spinning top.
Sauces & finishes 2

Sizzled butter
Butter heated in a small pan until it foams, met with chilli flakes and poured over cold garlic yoghurt. The most characteristic Turkish finish there is: mantı, yayla çorbası, Ali Nazik, çılbır.

Dried mint in butter
Dried mint bloomed briefly in hot butter and poured over a yoghurt dish. Standard on yayla çorbası, mantı, cacık and haydari.
