01 - Preheat a grill to medium-high heat, approximately 400°F.
02 - In a small bowl, whisk together melted butter, olive oil, Cajun seasoning, smoked paprika, garlic powder, onion powder, salt, and black pepper until well combined to form a smooth paste.
03 - Using a pastry brush, evenly coat each ear of corn with the Cajun spice mixture, ensuring all sides are thoroughly covered.
04 - Place corn directly on preheated grill grates. Grill for 12-15 minutes, rotating every 3-4 minutes, until kernels are tender and display light char marks on all sides.
05 - Remove corn from grill and transfer to serving platter. Sprinkle with chopped parsley and arrange lemon wedges alongside for squeezing over the top before eating.