Using a food processor, combine the tahini and lemon juice and process for a minute, scraping the sides and bottom of the bowl then process again.  This step gives the hummus its extra creamy texture.

Add the olive oil,  garlic, cumin, and  salt to the whipped tahini and lemon juice. Process, scraping the sides and bottom of the bowl and then processing again.

Using either your cooked chickpeas or the tin,  add half of them  to the food processor and process for about 1 minute, scraping the sides and bottom of the bowl, then add remaining chickpeas and process until thick and quite smooth.

At this stage start adding the water until the desired consistency is reached.  It should be nice and creamy.

Add more salt and pepper to your taste.

Serve with a swirl of olive oil .