Make Ahead Tip: Cover and refrigerate for up to 3 days.
Tahini is a thick paste of ground sesame seeds. Look for it in large supermarkets in the Middle Eastern section or near other nut butters.
The tart berries of a particular variety of sumac bush add a distinctive element to many Middle Eastern dishes. Find them whole or ground in Middle Eastern markets or online at kalustyans.com or buylebanese.com.