Also on these boards
Corn on the Cob for a Crowd aka "Cooler Corn." Wash out a cooler. Put in a bunch of ears of corn (shucked and silked). Pour enough boiling salted water into the cooler to cover the corn. Close the lid and wait 30 minutes. Open the lid and the corn will be perfectly cooked. The corn will supposedly remain at the perfect level of doneness for a couple of hours.
The Best Way to Cook Corn on the Cob for a Crowd? It's Cooler Corn: BA Daily plus links to about ten other fabulous looking corn recipes.
Charred Corn with Garlic-Herb Butter | Use the husks as handles by pulling them back and tying the ends with kitchen string. Soak in cold water at least 10 minutes before grilling to prevent burning. | SouthernLiving.com
Cook Corn for a Crowd in a Cooler If you want to cook corn for the masses, Bon Appetit suggests a dead simple, ingenious method: "cooler corn." Basically, fill a large, clean cooler with loads of corn on the cob and pour two kettles-full of boiling water over the corn, then close the top. 30 minutes later, your corn will be perfectly cooked. Campers and other outdoorsy people probably already know this trick, but the rest of now have a new, neater way to make lots of corn for company.