I learned this process from an acquaintance, Mrs. Scharffer, one day while she was freezing corn from their own harvest.
First off, shuck the husks and take the silks off the corn.
In a huge pot, bring water to a rolling boil, then carefully drop the halved corn on the cob. (you'll find out later why I cut them in half). Bring the water back to a boil then begin timing for 4 minutes.
After 4 minutes, take the corn on the cob from the boiling water and let them cool in ice cold water for about 10 minutes. Put them in a colander to drip.
The reason why I cut the corn in half so I can have them stand on the flat end and stay steady on the board and not wobbly when cutting them.