Golden, slightly crumbly Southern cornbread baked in a cast-iron skillet is a vegetarian staple of any Southern family meal. Best enjoyed warm with butter, this simple bread pairs perfectly with beans, greens, and soups.
Preheat the oven to 425°F and place a 9-inch cast-iron skillet inside to heat while preparing the batter.
In a large bowl, thoroughly whisk together yellow cornmeal, all-purpose flour, baking powder, baking soda, salt, and sugar for even distribution.
In a separate medium bowl, blend buttermilk and eggs until fully combined, then pour the wet mixture into the dry ingredients.
Carefully melt unsalted butter in the hot skillet, swirl to coat, and immediately add the melted butter to the batter; quickly mix until just incorporated—do not overmix.
Pour the batter into the hot, buttered skillet and bake for 20–23 minutes, or until golden-brown on top and edges are crisp; allow to cool for 5 minutes before slicing and serving.