Place the peeled and grated cucumber into a cheesecloth or clean towel and strain out the excess liquid. After the cucumber is strained, it will measure ½ cup.
Add the rest of the ingredients and put in the fridge for 1 - 2 hours so that the flavors combine.
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Notes
If you are not using an English cucumber, remove the seeds.This tzatziki recipe will last about 5 days in an airtight container in the refrigerator.