Preheat the oven to 350 degrees. Put the chickpeas in a paper towel or dry dishcloth to ensure they're as dry as possible. Transfer to a baking sheet and spray lightly with cooking oil spray, shaking to evenly distribute. Bake for 30 minutes, shaking the pan halfway to roll the chickpeas around to ensure even crisping.

Turn the broiler on low for 2 minutes. Remove from oven and transfer to a bowl. Add seasonings and adjust salt to taste. Eat immediately for maximum crispiness, but store in a jar or ziploc with air pushed out for snacking later.