01 - Preheat grill to medium-high heat, approximately 400°F.
02 - In a small mixing bowl, blend softened butter, minced garlic, chopped parsley, salt, and black pepper until thoroughly combined.
03 - Using a basting brush, lightly coat each ear of corn with some of the garlic butter mixture.
04 - Place corn directly on the grill grates and cook, turning periodically with tongs, for 10 to 12 minutes until kernels are tender and lightly charred.
05 - Remove corn from grill and immediately brush remaining garlic butter generously over hot corn.
06 - While corn is still hot, sprinkle freshly grated Parmesan over each ear so it softens and adheres.
07 - Transfer to serving platter and garnish with additional parsley if desired. Serve immediately.