Some guy posted this on a camper site on facebook. I've never heard of such a thing but seems like it would work. We like corn on the cob. And with eight adults at the table, that means a couple of dozen ears. We would have used the lobster pot to cook them all, but the lobster pot was busy steaming lobster. "Let's do cooler corn!" Before I can ask "what the hell is cooler corn?" a Coleman cooler appears from the garage, is wiped clean, then filled with the shucked ears. Next, two kettles-full of boiling water are poured over the corn and the top closed. Then nothing. When we sat down to dinner 30 minutes later and opened it, the corn was perfectly cooked. My mind was blown. And I'm told that the corn will remain at the perfect level of doneness for a couple of hours.