Preheat the oven to 400 degrees F. Heat a skillet of any size or shape in the oven.

Combine all of the ingredients in a bowl, except for the butter.

Melt the butter in the hot skillet, then pour off the excess into the batter.

Turn the oven down to 375 degrees F (175 degrees C).

Pour the cornbread mixture into the skillet, place in the oven and bake for 30 to 40 minutes, or until a toothpick inserted in the center comes out clean. Let cool slightly, carefully remove from the skillet and place on a wire rack to cool until ready to eat.