01 - Preheat grill to medium-high heat, approximately 400°F.
02 - Combine softened butter with smoked paprika, garlic powder, onion powder, oregano, thyme, cayenne pepper, salt, and black pepper in a small bowl. Mix thoroughly until all spices are evenly distributed throughout the butter.
03 - Brush each ear of corn generously with half of the prepared Cajun butter mixture, ensuring even coverage on all sides.
04 - Place corn directly on grill grates. Grill for 12-15 minutes total, turning every 2-3 minutes, until corn is tender and displays charred grill marks on all sides.
05 - Remove corn from grill and immediately brush with the remaining Cajun butter while hot to ensure melting and absorption.
06 - Sprinkle chopped parsley over the buttered corn and arrange lime wedges alongside for serving.