Combine flour, cornmeal, baking powder, and salt in a large mixing bowl; mix well.
Combine eggs, milk, and oil in a small mixing bowl, mixing until well blended. Slowly pour over cornmeal mixture, stirring just until dry ingredients are moistened.
Pour batter into a well greased 9-inch square pan.
Bake at 425 for 20 minutes or until lightly browned.