Pressure cook the potatoes, peel off the skin, mash thoroughly and keep aside.
Heat 1 tsp of oil in a pan. Once hot, add the onion and green chillies and saute until it turns golden brown.
Add the above to the mashed potatoes.
Add salt,corn flour and salt. Blend it thoroughly so that there are no lumps.
Heat enough oil in a kadai and allow it to become hot.
Meanwhile take a small portion of mashed potatoes and make small balls.
Flatten it a little and keep one cheese cube inside this and again turn it into a ball.
Dust it in bread crumbs and deep fry in hot oil.
(Make sure not to turn the balls as soon as they are dropped in oil because this might break the balls.
Wait for one side to turn golden brown and then turn around.
Tranfer it on a tissue so that excess oil is absorbed.
Serve hot and njoy with any sauce of your choice.