First, let's get this right. What looks like "hummus" is pronounced, "Chew-moose", and not 'who-miss' or 'hum-miss'!
The following recipe is probably the simplest and tastiest hummus you'll be able to find unless you're into driving your camel down to the Kasbah.
Whirl in a food processor (or do it by hand) and add any or all of the garnishes.