Dry the chickpeas as well as possible by putting them in a single layer of towels. Leave them to dry for at least an hour or longer. The drier you get them the crispier your chickpeas will be.
When you are ready to roast, preheat the oven to 425 degrees.
Toss the dried chickpeas in the maple syrup, coconut oil, and pumpkin spice. Put the chickpeas on a sheet pan in a single layer.
Roast for 35-45 minutes or until they are crispy. Watch the chickpeas carefully and remove any that are cooked early.