Preheat oven to 425 °F. Put 1 tablespoon of butter from the stick in a 8 inch cast iron skillet and place in oven to melt butter. Take out of oven once butter has melted.
In a large bowl, melt the rest of the stick of butter and combine the rest of the ingredients. Mix thoroughly and pour into buttered skillet.
Bake for 20 minutes or until toothpick comes out clean. Let skillet cool for a few minutes before cutting into cornbread.