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Tzatziki (Yogurt-Cucumber Dip)

Name: Tzatziki (Yogurt-Cucumber Dip)
Prep time: 15 min
Total time: 15 min
Yield: 4 servings
Cuisine: Greek
Ingredients: 400 g Greek yogurt; 1 each Cucumber; 2 clove Garlic; 2 tbsp Extra-virgin olive oil; 1 tbsp Lemon juice or vinegar; 2 tbsp Dill or mint; 0.5 tsp Salt

A cool, tangy Greek yogurt dip of strained yogurt with cucumber, garlic, olive oil, and herbs. No cooking and ready in 10 minutes — scoop with pita and vegetables, or spoon over kebabs and grilled meat. Squeeze the cucumber dry and it's foolproof.

Ingredients

4servings

Steps

Grate or finely dice the cucumber, salt it lightly, rest 10 minutes, then squeeze out the water hard with a cloth or your hands (the key step!).
⏲ 10 min
In a bowl, mix the Greek yogurt with garlic, olive oil, lemon juice, and salt.
⏲ 2 min
Stir in the squeezed cucumber and dill (or mint).
⏲ 1 min
Taste and adjust with salt and lemon.
⏲ 30 sec
Chill at least 30 minutes so the flavors meld.
⏲ 30 min
Spoon into a bowl, drizzle with olive oil, and top with olives and herbs. Serve with pita, vegetables, or grilled meat.

Variations

Mint tzatziki: Use mint instead of dill for a fresher note.
Creamier: Stir a little sour cream into the yogurt.
Kebab sauce: Thin it out to drizzle over kebabs and gyros.
Turkish cacık: Add water for a cold, spoonable soup-like version.

Tips

Squeeze the cucumber dry — watery cucumber is the #1 reason tzatziki turns runny.
Use thick, strained Greek yogurt for the right body.
Grate the garlic fine and use it raw, but go easy — it intensifies as it sits.
Chill before serving so the flavors marry.
Finish with a drizzle of good olive oil for richness and shine.

More detail and the reasons why (5)

This is the dish that takes water out, and that is its identity. The cucumber is grated and wrung bone dry so it will not slacken the yoghurt — the opposite direction to pai huang gua. Taramasalata is the reverse too: there water is put into the bread and wrung back out, here getting it out of the cucumber is the whole job.
Which is why the cucumber gets salted before it is squeezed. Wringing grated cucumber by hand leaves the water that is still inside the cells. Salt draws it out by osmosis first, so the squeeze reaches it too (salt and seasoning). Ten to fifteen minutes salted gives up far more than hands alone, and that salt is already in the cucumber — take it off the seasoning at the end rather than adding it twice.
Garlic does not mellow with time; over the first hour it sharpens. An intact clove contains no pungency whatsoever (blooming spices). Alliin and the enzyme alliinase sit in separate cells and only meet when the cell walls rupture, which is when allicin is made — and the reaction peaks at around ten minutes. Grated is the most violent of the three cuts, and chilling does not run it backwards. Raw grated garlic gets sharper as it sits, which is why çılbır, made with it the same way, is not made far ahead. What the half hour in the fridge actually does is let the yoghurt firm and the salt and cucumber settle in. If you want gentler garlic, change the cut, not the clock — sliced instead of grated is a genuinely weaker ingredient.
No heat anywhere, so the whole dairy problem never arises. Yoghurt is the most fragile dairy there is, and heating it takes three precautions — room temperature, off the heat, added in stages while stirring (dairy and heat). All three causes of splitting need heat, and there is none here, so plain full-fat strained yoghurt can go in with nothing added to protect it. Dovga is the far end of the same axis: to boil the same yoghurt it has to beat in egg and flour first.
The finishing oil goes on top, not through it. This sauce is not an emulsion. Stirred in, the oil blends for a moment, separates again on the plate, and thins the yoghurt while it does. Left on the surface the aroma reaches you first and the film slows the top from drying out.