Wash and boil sweet potatoes.

Let sweet potatoes cool.
Peel and mash them with folks

In one pot add mashed sweet potatoes, chopped onion, chopped spinach, chopped green chillies,corn flour,dry mango powder and salt.

Mix properly. To make pattice take little portion in hand make round ball and press little between palms keep aside

Heat 2-3 tbsp oil in pan and shallow fry pattice both side golden brown in color remove.