Method to cook using packed / frozen corn kernels.
Add sufficient water to a large pan and bring it to a boil.
Add the sweet corn kernel.
Let the corn kernels boil for about 15-20 minutes till they are cooked.
Do not overcook them. Once cooked, drain the water and keep them aside. (If using frozen corn just cook for 5 minutes, as they are already half-cooked).
In case you don’t have loose or frozen corn kernels then using a knife, remove the kernels from the corn cob and then boil them for 15-20 minutes till they are cooked or you may boil the whole corn cob in water too and when cooked, cool down a little bit and remove the corn kernels.