Put oil in a cast iron skillet, just enough to spread around the bottom and sides of skillet. I use a brush to do this. Preheat the oven to 350, immediately place the cast iron skillet in the oven, so the pan preheats as the oven does.

Mix together all ingredients in a large bowl, being sure to add the baking powder last and get all the lumps out.

Once the oven and skillet are preheated, pour in the batter, and bake for 20-25 minutes. Top of the cornbread should be golden brown. Let cool just a few minutes before slicing.