Preheat your oven to 400°F (200°C). Grease an 8x8-inch baking dish or cast-iron skillet.
In a large bowl, combine cornmeal, flour, sugar, baking powder, and salt. Stir until well mixed.
In another bowl, whisk together milk, vegetable oil, and eggs until smooth.
Pour the wet mixture into the dry ingredients and stir until just combined. Do not overmix.
Pour the batter into the prepared baking dish and bake for 20-25 minutes, or until golden brown and a toothpick inserted in the center comes out clean.
Let cool slightly, cut into squares, and serve warm. Enjoy!