If using regular unflavored yogurt, tie about 1/2 cup of yogurt into a square of cheesecloth and hang for about 30 minutes to allow whey to drain away. If using thicker Greek yogurt continue on to directions.
Stir all ingredients together and store in the refrigerator.
Seasoning options:
1/4 tsp garlic and/or onion powder.
If making a Mexican dish you can also season with chopped fresh cilantro or chives