1. Drain the chick peas and reserve the liquid. Mash them with a potato masher, or puree in an electric blender or food processor.
2. Blend in the garlic, lemon juice, peanut butter, cumin, cayenne pepper, salt, and oil.
Add enough of the reserved chick pea liquid to make a smooth, but not runny, paste. Serve at room temperature or chilled.