firstly, in a large kadai heat 2 tsp oil and saute 1 clove garlic, 1 inch ginger, 1 green chilli and 2 tbsp onion.
now add 2 cup palak and saute till the palak shrinks.
cool down the mixture completely, and transfer to the blender.
add water as required and blend to smooth paste. make sure not to add more water.
transfer the palak puree into large mixing bowl.
add in ½ cup bread crumbs, 2 tbsp corn flour and ¼ tsp salt.
combine well to form a dough. add more breadcrumbs if the dough is watery.
now grease hands with oil and take a ball sized dough.
flatten by pressing gently.
now place a small cube sized cheese (mozzarella / cheddar) and get the edges together.
seal well and make a ball without any cracks. else cheese will melt and create mess while baking or frying.
further deep fry in medium hot oil or bake at 180 degree celsius for 15-20 minutes.
stir occasionally without making any cracks on cheeseballs and till the cheese balls turn crisp.
finally, serve palak cheese balls / spinach cheese balls with tomato sauce.