I love the white sauce that they put on the gyro sandwiches and platters here in the turkish restaurants and even the city vendors… Im not sure but I think its like a green and turkish thing call tzatziki… is it? And does anyone have an authentic recipe for it? I know it consists of yogurt and cucumbers, but what else?
Riya, I made it once and used this recipe from FoodTV:
16 ounces plain yogurt
1 medium cucumber, peeled, seeded, and finely chopped
Pinch kosher salt
4 cloves garlic, finely minced
1 tablespoon olive oil
2 teaspoons red wine vinegar
5 to 6 mint leaves, finely minced
Place the yogurt in a tea towel (I used a cheese cloth), gather up the edges, suspend over a bowl, and drain for 2 hours in the refrigerator.
Place the chopped cucumber in a tea towel and squeeze to remove the liquid; discard liquid. In a medium mixing bowl, combine the drained yogurt, cucumber, salt, garlic, olive oil, vinegar, and mint. Serve as a sauce for gyros. Store in the refrigerator in an airtight container for up to a week.
Yield: 1 1/2 cups
Re: Gyro sauce
You can get cheese cloth from any grocery store. It looked like fine net cloth.
It tasted good, not exactly the same!
Re: Gyro sauce
I tried the following recipe yesterday and it turned out pretty good. i used sour cream instead of greek yogurt and i think i could have added more garlic but i didnt want hubs complaining of garlic breath 
It still however didnt taste like teh stuff you get in arabic rest, although according to the reviews it taste pretty greeky.
Re: Gyro sauce
i love gyros and sharwarmas yummm!!!!