1Heat oven to 350°F. Grease 2 (18x12-inch) pans with shortening or spray with cooking spray.
2In separate medium bowls, make cornbread batter and cake batter as directed on pouch and box. Pour both batters into large bowl; beat with electric mixer on medium speed until combined. Pour evenly into pans.
3Bake 20 minutes or until lightly browned.
4Cut each pan into 6 rows by 4 rows. Serve with your favorite chili or soup.