Boil milk in a heavy bottom pan and after i boils add white vinegar into it and wait for the milk to curdle.
Now cool it and pour it in a muslin cloth which will help to drain the whey from chena or home made cottage cheese
Hang the muslin cloth for half an hour to drain out the extra moisture from the chena.
Now take out the chena in a plate and mash it well using your palm until (10 minutes)it becomes smooth in texture.
After that add sugar into it and mash it again for 5 to 10 minutes.
Next add milk powder and cocoa powder to the chena mixture and mash it once again for 10 minutes or until the texture of the mixture becomes smooth.
Now take the mashed chena mixture in a wok and keep on stirring under slow flame.
Other side, melt the chocolate bar in micro or double boiler ( Keep chocolate in a glass bowl and keep the bowl over a boiling water pan) method and add it to the chena mixture.
Mix the melted chocolate well and keep on stirring for 7 to 8 minutes. Do not overheat it otherwise it will be dry in texture.
Cool it and you can give any shapes using moulds and garnish with cashew nuts
