01 - Heat grill to medium-high, approximately 400°F.
02 - In a small mixing bowl, thoroughly combine the softened butter, minced garlic, parsley, salt, and black pepper until evenly mixed.
03 - Using a basting brush, lightly coat each ear of corn with a portion of the garlic butter mixture.
04 - Place coated corn directly on the grill grates, turning occasionally, and cook for 10 to 12 minutes or until kernels are tender and exhibit light char marks.
05 - Transfer hot corn from the grill and brush with the remaining garlic butter while still warm.
06 - Generously sprinkle the freshly grated Parmesan cheese over the hot corn, allowing the heat to slightly melt the cheese.
07 - Serve immediately, garnished with extra fresh parsley if desired.