Add all ingredients to food processor. Puree to make smooth, about 45 second to 1 minute. Add water if needed to reach desired consistency. I usually add about 2-3 tablespoon of water. Serve immediately or store in fridge until ready.
Notes
Do not replace fresh rosemary with dried. It is much more concentrated and will mess up the flavor.
Use quality olive oil and tahini as part of the taste comes from both ingredients.
While store-bought bottles can be quite convenient, they lack in flavor compared to the real thing. It really isn't that much extra work to freshly squeeze the lemon and you'll notice a difference in flavor.
If the rosemary hummus is too thick, add water 1 tablespoon at a time until it reaches your desired consistency.