To roast the corn : Especially important if using frozenPreheat the oven to 425 degrees, and lay corn in a flat layer on a rimmed sheet pan. Roast for 15 minutes, turning once halfway through. To make the dip: Preheat the oven to 350 degrees.In the bowl of an electric mixer combine the cream cheese, chives, sour cream, cheddar cheese, and beat till mixed thoroughly and smooth. Add spices, salt and pepper, hot sauce and corn. Mix by hand till combined.
Put dip into an oven proof serving dish, and bake for 20 minutes or until hot and bubbly.
Serve with tortilla chips or crackers.