Cardamom, sometimes cardamon or cardamum, is a spice made from the seeds of several plants in the genera Elettaria and Amomum in the family Zingiberaceae. Both genera are native to the Indian subcontinent and Indonesia.
 
Toast green cardamom pods in a dry skillet for a few minutes. Let them cool for a minute and then remove the seeds from the pods. Save the pods to use for adding to coffee or tea for flavor. Grind the seeds in a ​mortar and pestle for best results, or you can use a motorized spice grinder (like a coffee grinder).