Step 1

Line a large sieve with cheese-cloth; set over a medium deep bowl. Place yogurt in sieve. Gather edges of cheesecloth to cover yogurt. Place in refrigerator and let drain for 2-3 days.

Step 2

Gently squeeze out any excess liquid; discard liquid in bowl (yogurt will be very thick and resemble soft goat cheese). Roll yogurt into 3/4 inches balls. Place in an 8-ounces glass jar.

Step 3

Whisk oil, herbs, and lemon zest in a small bowl to combine. Season with salt and pepper. Pour over yogurt in jar. Cover; place in refrigerator and let marinate for at least 8 hours and up to 2 weeks.