Using clean kitchen towel or paper towel, thoroughly dry chickpeas. Add to lined baking tray; bake, stirring every 15 to 20 minutes, until very crisp, smaller, and darker in colour, about 50 to 60 minutes in total. Set tray aside to allow chickpeas to cool completely at room temperature. Once chickpeas have cooled, transfer to medium bowl. Set aside parchment-lined baking tray for later use.