Soak corn in water, completely submerged for at least one hour. You could soak the corn overnight if it is too hard.
Drain the corn and place in a large pan on low heat. Stir from time to time until it starts to gain some color.
Mix salt with about a tablespoon of water and add in. Mix well then add in the groundnuts. Note that groundnuts should be only added when corn is more than halfway done. Stir until groundnut is thoroughly cooked.
Let it cool completely then place in an airtight container to preserve.
Notes
I have discovered the secret to soft, easy-to-chew krang krang. If the corn you use is too hard, you have to soak it in water for at least one hour before use. You could even soak it overnight. The yield is well-roasted corn that is crunchy and just so good.