However many ears of corn you want; I usually make 6-8
Peel back husks without removing them, get rid of all the silk, then pull the husks back over the corn (as best you can), place in a large bowl or a cooler, cover with cold water and place something on top to weight the corn down to keep it in the water.
Leave like that for at least one full hour. Drain the water then place the corn on a grill at medium heat. Turn every five minutes for 15-20 minutes; it’ll be a bit charred and this is good. Pull off and toss out the husks, add butter, spices, etc., and enjoy.