Place the unshucked ears of corn in a large bucket, tub, or bowl and cover with water. Soak for 1 hour.
While the corn is soaking, prepare a campfire and let it burn down to hot coals. It will take you about 20 minutes to develop coals after starting the fire.
Place the corn directly on the campfire grate set over the hot coals. Cook the corn, turning occasionally, and adding more coals as needed to maintain a medium-high heat, until tender, 25 to 30 minutes.
Pull the husks back from the corn and serve with butter and a sprinkling of salt.
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Notes
Built in handle--After peeling the husk back from the cooked corn, leave it attached and use it as a handle.
Avoid open flames--Don't cook over open flame. This will cause the corn to cook unevenly. Always use hot coals, which will provide an even heat. The cooking time will be dependent on how hot your coals are and how close the corn is to the heat.
Char happens--Don't worry if the husks begin to turn black. The inside is well protected by the many layers of husk.
Dietary--This recipe is suitable for gluten-free and vegetarian diets.