1. Preheat grill to 350° to 400° (medium-high) heat. Coat corn lightly with cooking spray. Sprinkle with desired amount of salt and pepper. Grill corn, covered with grill lid, 15 minutes or until golden brown, turning occasionally.
2. Meanwhile, stir together butter and next 5 ingredients. Remove corn from grill, and cut into thirds. Serve corn with butter mixture. Garnish, if desired.