Cast Iron Skillet Cornbread

In a large bowl, whisk together cornmeal, flour, sugar, baking powder, and salt.

In another bowl, whisk together buttermilk, eggs, and melted butter.

Pour wet ingredients into dry ingredients. Stir until just combined. Don't overmix; small lumps are fine.

Carefully remove hot skillet from oven. Add oil and swirl to coat bottom and sides.

Pour batter into hot skillet. It should sizzle.

Bake for 20-25 minutes until golden brown and a toothpick inserted in center comes out clean.

Let cool for 5 minutes, then slice and serve warm with butter.