Whisk together chickpea flour and about half of the water, until it's a thick paste. Add remaining water, continue to whisk until smooth. Bring to a boil, reduce heat and allow to simmer for 2 minutes. Once time is up, remove from heat and allow to cool slightly as you proceed:
In a food processor, blitz tahini and lemon juice for 1 minute. Add garlic and olive oil, blitz for one more minute.
Add chickpea mixture, blitz for 1 more minute. If mixture is too thick, add water a little bit at a time until it reaches desired texture.
Season with salt to taste.
Serve with a drizzle of olive oil on top, as well as any toppings you would like.