1
Preheat a well-oiled grill (or grill pan) to medium-high heat. Wash and dry produce.
Drain corn, then pat dry with paper towels.
Place corn and 2 TBSP butter (4 TBSP for 4 servings) in the center of a large piece of foil (about 12-by-12 inches); season with a big pinch of salt and tightly cinch into a packet. Place packet in the center of a second large piece of foil and cinch tightly to seal. (For 4, divide corn between two large pieces of foil and double-wrap packets as instructed.)
Add corn packet to grill (or grill pan); grill until warmed through, 4-5 minutes per side. TIP: Watch carefully to avoid scorching!