Preheat oven to 400F and lightly grease an 8 inch cast iron skillet with butter.
In a large bowl, combine flour, cornmeal, sugar, salt and baking powder.
In another bowl blend the egg, milk and vegetable oil until well combined.
Add wet ingredients to dry ingredients and mix until just combined.
Pour batter into skillet.
Bake for 20 to 25 minutes until golden brown, and a toothpick inserted in the middle comes out clean.
Remove skillet from oven, and cool slightly before serving.
Don't overmix the batter. It should be lumpy/craggy - not smooth. Why? Because overmixing will make your final product less tender and fluffy. You want it to be light and fluffy.What can you add to this/how to modify?Anything you like!Cooked chorizo, bacon, cheddar cheese, jalapenos, fresh corn kernels - anything!You can switch out the milk for buttermilk, or do a combination of milk and sour cream.