Add mashed potatoes , onions and other dry ingredients with salt in a mixing bowl except cheese cubes
Mix all the ingredients very well and keep aside,Then divide the mixture in small balls or portions
Take some oil in your palms, take small portion and smoothen it in a ball
After that make a small hole in center and stuff one cheese cube in it
Now close the ball carefully and smoothen it
Keep making all the balls in the same way and keep aside
Then coat these balls with crushed roasted vermicilli and cheesy balls are ready to fry, I have flatten it a bit but you can give any shape
Now heat good amount of oil in a frying pan
When the oil is heated properly, then drop 2-3 balls in hot oil and keep the flame to medium
It is very important to cook these balls on medium flame, so that you can enjoy the melted cheese and properly cooked potato mixture while eating
Keep frying and flipping till the balls turns out golden brown in color
Serve immediately with Dip, Sauce or Chutney of your choice