The first step of removing the chickpea skins is optional. If you would like to remove them place the chickpeas in a large bowl and fill with water. Rub the chickpeas between your fingers to remove the skins. The skins will float to the top and can be poured off the side of the bowl with the water (more photos and instructions on how to do that here). Drain chickpeas of any remaining water and then dry well with a towel.
In a medium bowl toss the chickpeas in oil and spices. Then spread the chickpeas on a sheet tray in one even layer.
Roast for 30 minutes, shaking the pan occasionally, until crispy and golden brown. They are ready to enjoy!