Preheat Oven: Heat oven to 375°F (190°C). Grease a pan or muffin tins.
Mix Dry Ingredients: Combine flour, cornmeal, sugar, baking powder, baking soda, and salt in a bowl.
Add Wet Ingredients: Melt butter. Mix with eggs, vegetable oil, and milk. Add to dry ingredients.
Combine: Stir until the batter is the consistency of pancake batter. Use just enough milk to achieve this texture.
Bake: Pour batter into the prepared pan or muffin tins. Bake for 15–25 minutes. If baking at 350°F (175°C), cook for 30–40 minutes. Check halfway through baking to ensure even cooking.
Notes
For a crusty bottom, use an iron skillet.For a crustier top, increase the oven temperature to 400°F.