Step 1

Heat the oven to 400°F. In a small bowl, vigorously whisk the milk and vinegar.

Step 2

In a large bowl, whisk the cornmeal, flour, sugar, baking powder, salt, and baking soda.

Step 3

Stir the oil into the milk mixture. Add the wet ingredients to the dry ingredients and mix to combine.

Step 4

Pour the batter into an 8x8-inch square baking dish. Bake for 35 minutes, until the top of the cornbread is firm and the edges are turning golden. Let the bread cool before cutting it into squares and serving.