You probably want an exact recipe or something. Well, I don't tend to do things that way. We could title my blog 'The Sloppy Housewife' or something like that. Here is hummus my way:
A can of Garbanzo beans (drain if you like, then dump contents into blender).
Tahini (if you want to get it cheaper, go to an Indian store or middle eastern, it's cheaper there).
I use about 4 or 5 soup spoon dollops into the blender. You can use more or less, depending what you like.
Real Lemons (in a pinch, use the bottle stuff - just pour some in) (Squeezed, I use a lot - like 2-4 lemons).
Salt (little or a lot, you decide)
Olive oil (I use about 2-3 Tablespoons - of course I don't measure, I just guess at it).
1 or more cloves of garlic
Dump it all in the blender. Blend until creamy smooth. My earlier mistakes had been not blending long enough and it was kind of chunky, or not using enough liquid (lemon juice, olive oil) so it was too thick and killing the blender.
Learn from my mistakes and go make perfect hummus.
You can eat it with a spoon if you like, or drizzle on salads, sandwiches or crackers.