01 - Preheat grill to medium-high heat, approximately 400°F.
02 - Combine melted butter, olive oil, Cajun seasoning, smoked paprika, garlic powder, onion powder, salt, and black pepper in a small bowl. Whisk until smooth paste forms.
03 - Brush each ear of corn evenly with the Cajun spice mixture, ensuring complete coverage on all sides.
04 - Place corn directly on grill grates. Cook for 12–15 minutes, rotating every 3–4 minutes, until kernels are tender and display light charring on all sides.
05 - Remove corn from grill and arrange on serving platter. Sprinkle with fresh parsley and accompany with lemon wedges for squeezing.