Preheat the oven to 450° Rinse and drain the chickpeas. Spread the chickpeas out on a non linty kitchen towel and blot the chickpeas dry as mush as possible. Place the chickpeas in a microwave safe dish and zap for about 60 seconds in the microwave to further dry the chickpeas.
Add the chickpeas to a medium sized bowl, add the olive oil and the Garam Masala. Mix well.
Spread the chickpeas in a single layer on the parchment lined baking sheet and place in the oven.
Roast the chickpeas for 30-40 minutes. After 30 minutes, taste a chickpea and if they are not fully crunchy inside, cook for an additional ten minutes.
Serve immediately or store in an airtight container for up to a week.