Rinse and drain the chickpeas and then pat dry with paper towels. Leave them to dry for another 5 or so minutes.
Toss the chickpeas with olive oil and salt. Spread out in an even layer on a baking tray lined with baking paper.
Roast for 30 -35 minutes, but shake the pan every 10 minutes or so. 5 minutes before removing the chickpeas, add your desired seasoning.
The chickpeas are done when golden and crispy on the outside, and soft in the middle. You can leave them in the oven once it's turned off to ensure that they are completely dried out.
Serve while the chickpeas are still warm and crispy. They will gradually lose their crispiness as they cool.