Preheat oven to 375.
In a large skillet melt butter w/ olive oil over med. heat. Cook onion 'til soft.
Add green chilies, garlic, cumin and coriander. Cook 3 to 4 min. Add vinegar, scraping pan to loosen any caramelization. Add chicken, brown sugar, chocolate, chili sauce, and chicken broth.
Stir to combine & check for seasoning. Bring to simmer and stir, cooking gently till thickened. Allow to cool. Then mix cornbread with eggs and milk (or water with a pinch of sugar or even chicken broth) in a medium bowl.
Spray a 9x13 pan with cooking spray then add chicken mixture. Top w/ cornbread mix, smooth. Bake 'til cornbread is lightly golden brown on top (about 23 min).
A viewer or guest of the show, who may not be a professional cook, provided this recipe. It has not been tested for home use.
Recipe courtesy of Anna Shelley of Lakewood, OH, for FoodTV.com's Chocolate Championship Cook-Off