Preheat the oven to 400°F.
Open the cans of chickpeas and pour the chickpeas into a strainer in the sink. Rinse under running water.
Dry the chickpeas by patting dry with a paper towel. Make sure they are dry to the touch, and if you have time you can let them air dry for a few minutes.
In a bowl, toss the chickpeas with olive oil and salt until evenly coated. Spread the chickpeas out in an even layer on a rimmed baking sheet.
Place the baking sheet in the oven. Roast the chickpeas for 30-35 minutes. Shake the pan every 10 minutes to make sure the chickpeas end up crispy on all sides. The chickpeas are done when golden and slightly darkened, dry and crispy on the outside, which takes about 30-35 minutes total. It is okay for the chickpeas to be slightly soft in the middle.
Remove chickpeas from the oven. If you wish to add some additional seasoning, place toss the chickpeas with the spices in a bowl or container to coat thoroughly (Garlic Powder, Onion Powder, Ground Rosemary, or Cinnamon are all great to use whether you want a sweet or savory snack!)
You can store leftovers in an air tight bag or container for up to 1 week.
Enjoy!