I don't own a food processor and because I don't have much storage in my apartment, I'm not entirely interested in purchasing one right now.
Is it possible to create good hummus without a food processor?
Would a blender be an alright substitute?
While you can make a decent hummus with a blender, it will be thinner than the hummus you would make in a food processor (at least thinner than my recipe).
If you have a potato masher or ricer, either would do the job nicely, giving you a texture that is less smooth than you might get with a food processor, but definitely good. I like the texture when done by hand (think lumpy mashed potatoes) and the flavor, of course, is the same. You can accomplish the same thing a little easier with a stand or hand mixer.
Keep in mind that hummus has been around a lot longer than the food processor, so if you do it by hand, it will probably be more like "real" hummus.
I've always made my hummus in the blender.
Just make sure to put the oil, yogurt and any other liquid ingredients at the bottom (in first) so that they're blended in first, before it gets too dry from the chickpeas. It'll get pretty thick, but a quick scrape with a spatula will get things moving again.
A recent trick I learned was to use warm chickpeas rather than cold or room temperature... a couple seconds in the microwave and they'll come out much smoother than if they're cold.
And don't forget the tahini!
mortar and pestle works perfectly. Watch out for your fingers, though. When the pestle gets all slippery it is pretty easy to hurt yourself.
In a pinch, I have also used a heavy glass (think mojito) with a thick bottom as a pestle, and a plastic bowl as a mortar. Messy, but when you must have hummus messiness is just a detail.