Mexican Charred Corn Dog. In a skillet, cook corn until browned. Add vegetable oil and sliced scallion whites and cook until scallion is tender. Season with salt and pepper. Combine mayonnaise and lime juice. Place hot dogs in buns and top with corn mixture, lime mayonnaise, crumbled Cotija or feta, and sliced scallion greens. Sprinkle with chili powder.