To make self-rising cornmeal:

• 1-1/2 cups stone ground yellow cornmeal
• 1 tsp. baking powder
• 1/2 tsp, baking soda
• 1/2 tsp salt

http://www.seriouseats.com/recipes/2008/04/carrolls-extra-moist-cornbread-recipe.html

Simply Corn Muffins from The Cornbread Gospels by Crescent Dragonwagon