In a mini food processor, process the garlic until finely chopped.
Add the tahini, lemon juice and honey (if using), and season with salt. Process until combined (it will be quite thick).
Add the water and process until smooth, stopping and scraping the sides occasionally. Season with salt to taste (feel free to add more lemon juice and/or honey as desired). For a thinner sauce, add another splash or two of water, and process until smooth.