Drain and rinse chickpeas, then pat as dry as possible between paper towels. A number of the skins will slide off, so just discard those.
In separate bowl, mix olive oil, spices, and brown sugar.
Add chickpeas and toss until well coated.
Spread spiced chickpeas in single layer on a rimmed baking sheet lined with parchment paper or a silicone baking mat.
Bake at 400 degrees for 25-30 minutes, stirring after 15 minutes, then turn off heat and leave in oven another 10-15 minutes so that they get crispier.
Be sure to check them at 25 minutes so that they don't get a little overdone like mine did, lol! (Although they were still darn tasty...)