Tahini

Ingredients:

sesame seed
sea salt
lemon juice

Grind half a cup of white sesame seeds as fine as you can in your hand grinder or in a blender. Beat in two tablespoons of cold water with a whisk. Add two tablespoons of lemon juice and salt to taste, say a quarter of a teaspoon.
Thin with a few drops more of water to the consistency you require. Let stand for a quarter hour before serving.
Hand this sauce at table with salads, use it to construct sandwiches, or serve as a dip for crudités. Hummos and Mutabbal are good examples of tahini usauge as well as Halva.

Note: The sesame is an ancient cultivar, out of the Indian sub-continent, and is very rich in unsaturated fatty acids and calcium among other useful nutrients.

Halva

Hummos

Mutabbal

Of course you can always buy it ready made.