Preheat over to 350°F. Grease and flour a 10-inch cast iron skillet.
Measure the cornmeal, flour, sugar, baking powder, baking soda and salt into a medium mixing bowl and whisk to combine.
Crack the eggs into a small mixing bowl, add milk and whisk to combine. Stir in melted butter.
Pour the wet ingredients over the dry ingredients and mix by hand just until combined.
If you want to add extra ingredients, gently stir into mixture. I added 1 cup of corn (either frozen thawed or fresh from the cob when in season).
Pour the batter into the prepared pan and bake for 35-40 minutes, rotating the pan halfway through the baking time. The cornbread should be golden brown around the edges, which will pull away slightly from the side of the pan.
Serve warm from the oven with honey butter.