Preheat the oven to 400 degrees F.
Place the garbanzos on a well-oiled baking sheet with sides. Drizzle with the 1 tablespoon olive oil and and toss (I like to use my clean hands) so that garbanzos are evenly coated in oil.
Sprinkle the salt over beans. (I move all the beans together on the baking sheet so that most of the salt goes on them as opposed to the tray. Then slide back around on the tray.)
Roast at 400 degrees F for 15 minutes. Reduce the oven temperature to 350 degrees. Stir the beans and roast in 10-minute increments, stirring after every 10 minutes, until crunchy, approximately 20 minutes more. Depending on the oven, you may need to bake another 10 minutes or so. Reducing the oven temperature will make it easier to throughly crisp the beans without burning them. (See notes below for a few helpful hints.)