Preheat the oven to 400ºF. Spray an 8- or 9-inch square baking dish with cooking spray.
Combine the cornmeal, flour, baking powder, baking soda, and salt in a mixing bowl. Whisk to combine.
In a separate bowl, whisk together the buttermilk, honey, eggs, and melted butter. Add the wet ingredients to the dry and stir to combine. Pour into the prepared baking dish and bake for 30 minutes or until golden brown and a toothpick inserted into the center comes out clean. Let cool in the pan for 10 minutes. Cut into squares and serve.