Thaini is a paste made from ground sesame seeds. It is used most often in the Middle East. Any Middle Eastern food recipe will be enhanced with the flavor of tahini. It may be an acquired taste so using it in a limited way at first, like this dip, is a great way to develop a taste for it. Once you do, you will be hooked!
You might be taken aback by the cost at first, but it goes a long long long way. And once you are hooked on the flavor you'll be searching for more and more recipes to use your tahini!