Add the cauliflower to a steamer basket and place inside a saucepan with 1 inch of water. Bring to a boil, cover and cook until fully tender, about 6 minutes. Remove the cauliflower from the steamer and cool.
Add the cauliflower, chickpeas, tahini, oil, garlic, cumin and salt and pepper to taste to a blender and blend until smooth. Add 1/4 cup water to thin it out, if necessary. Serve with raw vegetables.