Preheat oven to 400°F Spray 2 muffin tins with vegetable oil spray.

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

In a separate bowl or saucepan, melt the butter.

Whisk the egg lightly while the butter cools a bit, then add the egg, milk, and vanilla extract to the butter.

Make a well in the center of the dry ingredients and pour the mixed liquid, stirring lightly until just blended. Don't over-mix because the muffins will be tough.

Spoon the batter into the muffin tins. Bake at 400°F for 15-18 minutes, until the muffins have risen, are golden-brown and springy to the touch.

Pop out of the tins and let cool a bit before serving.