Rinse the beans and pick out any rocks that might be masquerading as beans. Put them in the pressure cooker. Cover with a generous inch of water.
If you wish, add optional seasonings, except salt. Don’t add salt until the beans are cooked.
With a stovetop pressure cooker: Cover and bring to pressure over high flame. When it comes to pressure, turn the heat down, just so it maintains pressure. Set the timer. How much time depends on whether you soaked the beans or not. See notes.
With the electric Instant Pot or Mealthy, turn the top dial to Sealing, press Manual on the Instant Pot and set the timer, depending on whether you soaked the beans or not.
Cook pre-soaked beans 12 to 18 minutes if you plan to let the pressure come down naturally.
Cook pre-soaked beans 16 minutes under pressure if you plan to quick release the pressure.
If you didn’t pre-soak the garbanzos, cook 35 to 40 minutes.
Test a bean to make sure it is tender to your liking. If they need to cook more, bring to pressure again for a minute or so. Quick release.
You're there--perfect garbanzo beans ready for your next recipe.