Tzatziki / tsatsiki recipes

Anyone have a good tzatziki recipe??
Thnks.

There's a stand at Mplatz Viktualienmarkt which has a great tsatsiki powder mix. Can't remember the name of the stall, but it sells nuts and things too and is somewhere behind the exotic fruits stand. All you do is add yoghurt and creme fraiche to it and mix it up, then leave it for 20 mins. It's really really tasty, and only EUR 5 for a whole jar of the mix.

Quark (mager or full fat to taste)
Garlic crushed to taste
Cucumber crushed to taste
Salt to taste
Pepper to taste

Simple really is better.

Greek 10 percent fat yogurt OR plain 3.5 percent fat yogurt drained overnight through a cheesecloth (or coffee filter)
Garlic to taste
Cucumber grated coarsely or cut fine, drained and pat with paper towel
Large dash of olive oil
chopped fresh dill or mint (whichever you like)
salt to taste

Im not into measuring stuff, but here is what do

I take a tub of full flavor (fat) yogurt and place it inside a cheese cloth lined strainer for an hour or 3. while draining i take a cucumber, deseed it and grate it. Place the grated cucumber on a towel and let sit for 15 to 30 minutes. Then I take 2,3,4 cloves of garlic, chop them roughly and put them in a mortar and pestle (every kitchen needs one) add some kosher salt and grind into a paste. Then I finely chop up some mint. Finally I combine all of the ingredients, mix, salt and pepper to taste. Great on lambs burger gyros.

I have the recipe for the burgers if needed.