Preheat oven to 425°F. Place cast iron skillet in the oven when it reaches temperature.
While the cast iron skillet is preheating, add the melted butter to the buttermilk. Then, whisk in the eggs. Set aside. (See Tip 2)
Whisk together the cornmeal, flour, sugar, salt, and baking powder.
Add the wet ingredients to the dry ingredients. Stir just until combined. (See Tip 3)
Remove the skillet from the oven. Brush the bottom and sides with the vegetable oil. (See Tip 4)
Pour the cornbread batter into the prepared skillet. Bake in a preheated 425°F oven for 25 to 30 minutes or until golden brown. Remove from the oven and allow to cool slightly before serving.
Yield: 8 servings. (See Tip 5)
