Tahini sauce is used extensively in Middle Eastern cooking. It is typically made from pureed sesame seeds (tahini paste). You can find tahini paste in jars in many supermarkets. Often the tahini paste will become separated from the oil, so you should stir to re-incorporate before measuring. This sauce can be made 2 days in advance. Serve it with a vegetable platter, to top bread, in sandwiches, etc.