Add the tahini and lemon juice to a high speed blender or the bowl of a food processor and process for about 30 seconds until whipped together. Scrape down the side of your blender or food processor if necessary.
Add in the beans, cilantro, garlic, spices and ¼ cups water and process until combined.
Add in the remaining ¼ cup of water and continue blending/processing until smooth and creamy.
Store in an airtight container in the fridge for up to a week.