Here's a basic technique of Middle Eastern cuisine: tahini sauce. This is the classic way of preparing tahini, not just a sauce but a component of a myriad of dishes. Add pureed chickpeas to this and you have hummus, add mashed eggplant to it and you have baba ghanoush. Drizzle it on top of fish, toss it with dice tomatoes, or stir it into cooked swiss chard. This technique is embedded in hundreds of Middle Eastern recipe.
This technique also has a cool chemical reaction in it: the interaction between the tahini and the lemon juice. The acid in the lemon juice causes a very runny tahini sauce to thicken up and become stiff and solid. (Any chemists out there who can explain this??)
This is an old school recipe that's best done with a mortar and pestle. You can do this in a food processor, but I rarely do (mainly because I hate cleaning the food processor), but also because I find it doesn't do a very good job smashing the garlic.
This sauce is classic, and rarely needs anything else, but feel free to try adding a pinch of cumin or Aleppo pepper just to mix things up.
1 garlic clove
1/2 teaspoon salt
1 cup tahini
juice of 2 lemons (must be fresh!)
1. Bash the garlic and salt in a mortar and pestle until it reaches a smooth paste. Transfer the paste to a bowl and stir in the tahini.
2. Add in the lemon juice, you will see the sauce become very white and "tight." Slowly add in water until the mixture reaches a smooth paste (don't be surprised, you may have to add up to 1 to 2 cups of water). The sauce should be thick put pourable. Season as desired.