Preheat oven to 375 degrees F. Place the iron skillet in the oven and let it warm up for 5 minutes.
Add the eggs, buttermilk, melted butter, and sugar to a large bowl and mix until well combined.
Add the flour, baking powder, baking soda, salt, and cornmeal. Mix until well incorporated but do not overmix.
Add about 1 tbsp of butter to the hot skillet. Pour the cornbread batter into the skillet and smooth out the top with a spatula.
Bake for 20 minutes and then turn on the broil function and let it bake for an additional 1-2 minutes or until the top is nice and golden.
Serve warm, with butter, honey, and enjoy!