It is better to surround the stove rings with foil, as it can get messy.
Use less tahini if you prefer a less nutty flavor or omit it per personal preference. If tahini is not at hand, grind roasted sesame seeds and add to the dip.
Feel free add anything from broiled bell peppers to a dollop of plain yogurt or roasted tomatoes to transform it into something quite different.
Adjust other ingredients per your taste preference. A good baba ganoush yields from blending, stopping, stirring, tasting, adding more of this or that per your taste.