Roast the corn (still in husks) on either a hot grill or in a 400° oven until the husk blackens (about 10 minutes). Turn as needed.
Heat a large sauté pan over medium-high heat. Add oil, and when hot add apple, onion and 1 T Cajun Seasoning. Saute until the apple begin to brown, about 5 minutes.
Add red cabbage, garlic and other T of Cajun Seasoning and sauté until the cabbage begins to wilt (about 4 minutes). Add cider vinegar and cook another 4 minutes. Cover and cook until liquid is almost gone, about 4-5 minutes.