For fresh, husked corn, the classic method is foolproof: bring a pot of water to a rolling boil, drop in the ears, and set a timer for 4 to 5 minutes. That’s it.
If you’re boiling frozen corn? Add two minutes. But here’s the secret: never boil for more than 8 minutes total, or you’ll get sad, waterlogged kernels.
And please, don’t add salt to the water—it toughens the skin. Salt the butter afterward.
How to Cook Corn on the Cob in the Oven Perfectly