Add the ube, garlic and the chickpeas, along with salt and pepper to the bowl of your blender or food processor, and blend them together. Next add the tahini and blend.
Finally, with the motor running, add the lemon juice, olive oil, aquafaba and water and allow to process for several minutes, depending on how smooth you like it. Process longer for a smoother hummus, shorter for the chunkier one. Taste and season before blending one last time.