Put your cast irons in the oven and preheat the oven and the cast irons to 425℉
In a small pot melt the butter on the stovetop, browning the butter if you would prefer.
When you have melted and browned your butter, take the pot off the burner and let it cool slightly.
While the butter is cooling, mix flour, cornmeal, baking soda, baking powder, and salt. In a seperate bowl, beat your eggs. Add the honey and cooled butter to the beaten eggs. Add the sourdough starter to the egg mixture and whisk until smooth. Add the wet ingredients to the dry ingredients. Add milk or buttermilk, a little at a time until you have a thick, muffin like batter.
Remove your cast iron (s) from the oven and generously grease with coconut oil.
Spread your batter evenly in the pan.
Put the pan back in the oven, turning the oven down to 375℉ for 25-30 minutes. When it's done, the tops will be golden brown and the batter will be pulled away from the sides of the pan.
Remove from the oven and let cool slightly. Serve warm or at room temperature.
Bon Appétite!