Preheat oven to 450 degrees. Drain and rinse chickpeas; pat as dry as possible. Arrange rinsed and dried chickpeas in a single layer on a baking sheet or cutting board. Using a paper towel or kitchen towel, gently rub your hands back and forth over the chickpeas, applying just a little pressure. This way, you'll remove the chickpea skins - discard them. Now, toss your chickpeas with 2 tbsp oil. Put in oven and roast for 20 - 30 minutes, or until golden brown. Remove and immediately toss with spice blend of choice, then serve. These will keep at room temperature in a tightly sealed container for 4 - 5 days.