What is tahini, where can I find it, and can I make it myself or substitute something for it?
Tahini is sesame seed paste and is used primarily in Middle Eastern cooking. You should be able to find it in the international section of a large grocery store. You can also make it yourself with a large amount of toasted sesame seeds and some oil. Put the toasted seeds into a food processor and stream in the oil until you achieve a desirable consistency. A close substitute in flavor is peanut butter, so you might try experimenting with that as well.