Preserved Lemon Hummus

Put the chickpeas, tahini, garlic and preserved lemons into a blender or food processor.
Blitz in short bursts, pushing the mixture down when needed until everything is combined.
Add the chickpea juice and mix for a few more seconds. If you want it less thick you can always add more of the juice.
Taste a bit and decide if you need to add any salt. If you do add the salt and pepper. If not, just the pepper and mix for a couple seconds.
Roughly chop parsley and zest a lemon.
Serve topped with the parsley and lemon.