Line a large strainer with cheesecloth and put over a deep bowl. Put all of the yogurt in the cloth.

Close the cheese cloth by closing its edges and place in a refrigerator for two days.

Now tenderly squeeze excessive liquid and the result will be soft cheese. Make small balls out of this cheese and keep in glass jar.

Take a medium bowl. Put in olive oil, lemon zest, salt and pepper. Whisk well.

Now pour this dressing into glass jar and marinate for eight hours. This will taste delicious up to 2 weeks.