Kolar Bora aka Bengali Banana Fritter is a crispy sweet snack/ dessert prepared with ripe bananas.
You may use sugar instead of Jaggery.
I do not like to flavor the fritters with cardamom or other flavoring agents as I prefer the natural aroma of Banana and jaggery in my Kolar Bora. You may for sure add some cardamom powder if you wish to.