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