Preheat the oven to 250 degrees, set a parchment-lined cookie sheet in the oven while it is heating.
Rinse chickpeas and place onto a clean kitchen towel to lightly dry off. This will help them crisp more than steam. Add the seasoning and oil to a bowl, add in the chickpeas and toss well.
Pour onto the hot cookie sheet. Place in a 250 degree oven until desired texture is reached (expect a few hours.) Remove from oven, cool and store in an airtight container.