IIRC it's chickpeas (you don't need to soak and cook, the tinned ones work perfectly), tahini (the concentrate in jars works better tahn the ready-made dips), olive oil, lemon juice, garlic and salt all jijjed up together in the food processor. But unfortunately I can't remember the quantities! My dad makes the most wonderful houmus, but he does it by eye and doesn't measure anything. He tastes it as he goes along, getting us to confirm for him as well. Yummy.