Tzatziki is the multi-purpose Greek Yoghurt and cucumber dip. It is used as a dip, as a spread, as a condiment and an appetizer, and mostly known to foreigners as the sauce which goes on your Gyro. (FYI...the word is pronounced; "Year-o". No hard "G", Please!)
Tzatziki is made as many different ways as there are preparers, but the basic ingredients are;
Greek Yoghurt (nothing like the pale thin stuff we buy in the States!)
Grated and drained cucumber
Garlic...Lots of Garlic!
Olive Oil...just a bit
lemon...again, just a bit
Alternative additions are:
grated carrots (not too much)
If making this from any yoghurt other then Greek, you will need to first drain the yoghurt using a coffee filter inside a sieve for several hours...this will make it thick enough. Also, I don't suggest low fat, just not the same.
Tzatziki compliments all meats beautifully, is great as a dip with pitta pieces or chips, and is yummy on it's own, scooped up with hunks of bread.
The best way to enjoy your Tzatziki ladened Gyro is with a glass or two of Retsina, but beware, it smells and tastes a bit like turpentine...and for your safety, should be drank SItting Down!