Preheat your oven to 400°F (200°C).
In a large bowl, combine cornmeal, flour, sugar, baking powder, and salt.
In another bowl, whisk together milk, vegetable oil, and eggs.
Pour the wet ingredients into the dry ingredients and mix until just combined.
Grease a 9-inch round or square baking pan.
Pour the batter into the prepared pan, smoothing the top.
Bake in the preheated oven for 20-25 minutes until golden brown.
Check doneness by inserting a toothpick into the center; it should come out clean.
Remove from the oven and let cool for a few minutes.
Slice and serve warm with butter.