Preheat oven to 400 degrees and spray a muffin pan with non-stick cooking spray.

In a small bowl, combine the buttermilk, oil, and egg.

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

Make a well in the center of the bowl. Pour the wet ingredients into the well and stir until just combined. Do not over mix.

Fold in the cheese.

Spoon the batter into the prepared muffin pan and bake for 13-15 minutes or until toothpick comes out clean.

Allow to cool slightly and remove muffins from pan to cool on a wire rack.