Soften butter and mix in parmesan cheese, parsley, garlic, salt, and pepper.
Slather butter mixture all over the corn cobs. Wrap corn in foil.
Place corn on the grill and cook for 18-20 minutes. Turn frequently until done. The foil will get dark burn marks and corn will be tender and look roasted.
Remove tin foil and cut corn off of the cob. Serve as a side dish or use in other recipes.