How to make the halwa

• Heat the milk and simmer.
• In a separate pan, mix the cornflour, cocoa powder with milk and make a lump less paste.
• Once the milk is boiled and thick, add the cornflour, cocoa paste. Keep stirring so that it doesn't form lumps. Add the sugar and stir to melt the sugar.
• As soon the mixture becomes a soft custard, add the nuts if you are using.
• When the mixture starts to leave the sides, add the butter and keep stirring.
• Pour this into a greased pan and set it aside.
• When cool, refrigerate till serving time. Cut into desired shapes and serve.