Mix dry (first 3) ingredients in a medium mixing bowl. Mix wet (remaining) ingredients in a medium mixing bowl. Add the wet ingredients to the dry ingredients and mix until smooth.
Pour into a “seasoned” (rub with oil and wipe off with paper towel), slightly preheated 10” cast iron skillet and bake at 400 degrees on middle rack of oven for approximately 20 minutes. Insert a knife in the center to see if it is done - it's done when the knife comes out clean; if batter stills clings to it, bake it a bit longer and check again. (Recipe #629)