Spray a 9-inch square cake pan with non-stick spray and preheat the oven to 400F.
In a medium bowl, mix together the flour, cornmeal, sugar, baking powder, and salt.
Make a well in the center, add the eggs, and lightly beat. Add milk and melted butter. Mix until everything comes together, don't overmix. A few lumps are okay.
Pour the batter into the pan and bake for 18-20 minutes until the top is golden brown and a toothpick inserted into the center comes out clean.
Let cool for a few minutes, then cut into 16 pieces.
Notes
You can also bake these using a muffin tin. It will make 12 muffins. Bake them for around 15 minutes.If using a 9” cast iron skillet, adjust the bake time to 20-25 minutes.