Remove the outer shells of the cardamom and take the seeds out. Crush them into a fine powder using a mortar and pestle.
Chop the chocolate into small pieces and transfer to a microwave safe bowl. Add the coconut oil. Microwave in 30 seconds interval and mix. Repeat until your chocolate is completely melted. Alternatively you can melt the chocolate by putting it into a bowl placed over simmering water.
Split open the avocados and remove the pit. Scoop out the flesh and transfer into a food processor or a blender. Add all the remaining ingredients (including the cardamom and melted chocolate). Process everything together, scraping the sides from time to time. Repeat until a homogeneous mixture is formed.
Tranfer to serving bowls or glasses and garnish. Cover and let it sit into the fridge for at least 3 hours or overnight.
