01 - Preheat oven to 425°F or prepare grill for medium-high heat.
02 - In a small bowl, mix softened butter with Cajun seasoning, smoked paprika, garlic powder, onion powder, salt, pepper, chopped parsley, and lime juice until well combined.
03 - Place corn cobs on a foil-lined baking sheet. Brush each ear generously with the Cajun spiced butter, ensuring all sides are evenly coated.
04 - Roast in preheated oven for 20-25 minutes, turning halfway through, until corn is tender and slightly charred. Alternatively, grill directly on grates, turning every few minutes for even charring.
05 - Remove from oven or grill. Brush with any remaining Cajun butter and sprinkle with extra parsley. Serve hot with lime wedges on the side.