Preheat oven to 350°F. Line a large baking sheet with parchment paper. Pour the chickpeas on top and spread flat. Add the oil and spices and use your hands to mix and coat the chickpeas evenly. Make sure the chickpeas are in a single layer before putting into the oven.
Bake for 50 minutes. Halfway through baking time, carefully shake the pan or use a wooden spoon to stir the chickpeas, and then continue cooking until crisp. Cool and store in an airtight container.