The answer completely depends on how much time you have available. Canned chickpeas are ready to eat, so you can open the cans and have this component ready instantly. Dried chickpeas need to be cooked, and it can be tricky to cook them just right. If you want to use dried chickpeas, try cooking about a cup in 2-3 inches of water in your pressure cooker for 18 minutes. Let the pressure release naturally for 10 minutes, then release it all the way. Allow the chickpeas to cool completely before assembling the salad.