01 - Preheat grill to medium-high heat (approximately 400°F).
02 - Combine melted butter, parsley, chives, and dill in a small bowl, mixing thoroughly.
03 - Mix parmesan cheese, ranch seasoning, garlic powder, and black pepper in a separate bowl until uniform.
04 - Brush each ear of corn generously with the herb butter mixture, ensuring even coverage.
05 - Place corn directly on grill grates. Grill for 12–15 minutes, rotating every 3–4 minutes, until kernels are tender and develop light charring.
06 - Remove corn from grill. While still hot, sprinkle and press the parmesan-ranch mixture evenly over each ear, adhering to the kernels.
07 - Serve immediately with additional chopped herbs if desired.