Step-1Heat a kadai and roast the dry spices (fennel, cumin, cardamom, cinnamon, dry red chili, black peppercorn, kalonji), let them cool down and grind to powder. Keep aside.
Step-2In a pot take water and sweet potato boil it (don’t over boil) peel and mash it.
Step-3Wash carrot and beetroot peel the skin and grate them.
In a non stick pan add mustard oil and when the oil is hot reduce the heat and add grated ginger and the vegetables. Add the powdered spices and crushed peanuts, mix well add salt Keep cooking for 5-6min. Switch off the heat. Let the mixture cool down. [Note: If you think your vegetable mixture has more moisture then cook for longer duration. Add this mixture with sweet potato and mix everything together.
Step-5Make small balls with the mixture. The size and shape depends on individuals choice, I did a cylindrical shape.
Step-6Make a thin batter by mixing water and flour.
Toast bread and make bread crumbs.
Step-7Dip the vegetable balls in the batter and roll them in bread crumbs.
Step-8Put them in air fryer and fry for 20 minutes or till golden brown at 180 degree.