I got this recipe from pacahakam.com about 2 yrs ago and I always make this around Diwali. It's great to gift. I usually wrap each piece in printed cellophane paper and tie it with a satin ribbon--it looks so cute!
Mix milk powder and cocoa powder thoroughly without any lumps and keep aside.
Boil sugar in 1 cup of water. When the sugar dissolves, reduce the heat and put the white butter in it.
When the butter melts, add the milk powder and cocoa powder mixture, slowly stirring continuously. When the mixture leaves the sides of the pan, simmer the heat and the put off the gas. Let the mixture cool for 2-3 hours. (Optional--Pour this in a greased baking tray and keep it in the fridge to cool for 1 hour. Cut into desired shapes and store in a container. I have also made small nut sized balls and rolled them in flaked coconut and nuts.