Boil milk in a thick-bottomed cooking pot., stirring in between, ensuring that the milk doesn't stick to the base of the pot.
When the milk in the first pot comes to a boil, turn off the heat.
Mix vinegar and water in a bowl.
Add this vinegar and water solution slowly, part by part, to the boiled milk. Stir.
The milk will start curdling, and the curdled milk will separate from the clear whey.
Pour this into a fine strainer. If you don't have a fine strainer, put a muslin cloth on the strainer and pour the milk on the cloth.
Collect the curdled milk in the strainer.
Wash this under tap water to remove the sourness caused by the vinegar. This will also cool the curdled milk. This curdled milk in called 'Chena'.
Let the Chena rest on the strainer for about 10 minutes so that all the excess water flows out. If you have used a muslin cloth, squeeze it gently to remove the excess water.
Transfer this chena to a big plate. Add cornflour.
Using the lower part of your palm, mash and knead the chena so that all the fine grains are removed.
Make small balls. With the quantity of milk I used, I was able to make 60 small balls
To make the sugar syrup: In another big pot, boil sugar and water. When it comes to a boil, and the sugar is dissolved, add the chena balls to the syrup.
Boil for about 10 minutes. Then remove from heat and let the chena balls rest in the sugar syrup till further use.