Preheat oven to 400 degrees and line 12 muffin cups with liners.

In a bowl, add egg, melted butter, sugar, sour cream, and half and half. Mix with a fork until well blended.

Add in the flour, cornmeal, baking powder, and baking soda. Mix with the fork until combine well.

Divide the batter evenly into the 12 lined muffin cups.

Bake for 15-18 minutes at 400 just until they start to brown - don't overbake! Makes 12 muffins.