Preheat oven to 350 degrees F. Spray an 8" or 9" square or round baking pan with cooking spray. I used a 9". In a large bowl, combine flour, cornmeal, sugar, salt and baking powder. Whisk to combine. In a separate bowl whisk eggs, milk and oil until well combined. Pour into flour mixture and whisk just until combined. (Or, use one bowl method. See notes below.) Pour batter into prepared pan. Bake for about 25 minutes or until toothpick inserted in center comes out with a few moist crumbs. Serve warm or at room temperature.