Used different ingredients.
It's actually a fairly easy recipe that doesn't take nearly as much preparation time as suggested, especially if you use canned tomatoes. In addition, while it is mild in flavour this is a recipe that is easy to alter to your own taste. For a thicker, more curry-like and spicier sauce, just add some sour cream/nonfat plain yoghurt, curry, and red capsicum to taste. (Probably heavy cream could be used too.) Extra tumeric will give it that yellow colour. Highly recommended, especially if you like chickpeas. Use it as a base or enjoy experimenting. Either way, it is delicious.