Grate the cucumbers using the small holes on your grater then squeeze as much liquid from the grated cucumbers as possible. This is done easiest by picking up a small pile, holding it over the sink, and squeezing it hard with your hands.
Put the grated cucumber into a bowl and add the remaining ingredients to the bowl.
Mix well then let the tzatziki rest for at least half an hour for the flavors to blend together.
