Set your oven to 400°F to warm up while you prep.
Drain the chickpeas using a colander and rinse them thoroughly under cold water.
Pat dry the chickpeas on a clean towel, removing any loose skins, then let them air dry completely.
Prepare a baking tray by lining it with a silicone mat or parchment paper sprayed lightly with cooking oil.
Scatter the chickpeas in a single layer on the tray.
Bake the chickpeas for about 20 to 30 minutes, stirring every 10 minutes, until they turn a golden crisp.
Mix together the seasoning blends for each flavor profile in separate small bowls.
Divide the hot chickpeas evenly into three bowls as soon as they come out of the oven.
Add olive oil, between half a tablespoon and one tablespoon, to the bowls for the ranch and spicy flavors and toss to coat.
Sprinkle the corresponding seasoning mixes onto each flavored bowl and toss again to evenly coat.
Pour the maple syrup and cinnamon mixture over the sweet chickpeas, toss to coat, then return them to the oven for an extra 5 to 10 minutes.
Serve the chickpeas fresh and crispy for the best crunch.