Mix ground coconut, condensed milk, sugar, and cardamoms in a pan. Cook over a medium flame, stirring, continuously for about 30 minutes.

When the mass starts rolling, leaving an oily texture on the pan, lower the flame.

As it ready to set, spread the whole mass evenly on a clean, oiled tray. Use roller to spread and cut into diamond shapes while hot.

Allow the shapes to cool, remove them from the tray and box them.