Stir tahini until it's a thick paste, then place in food processor.
Add chick peas, lemon juice, salt, garlic and water in food processor.
Process until completely combined, about one minute.
If hummus is too thick, add a tiny amount of water and mix 'til the desired consistency.
Taste test, and add additional salt or lemon juice if needed.
Pour in serving bowl and drizzle with olive oil.
Serve as a dip with fresh vegetables, crackers or chips.