Makes 18 muffins In large bowl, combine flours, cornmeal, sugar, baking powder, baking soda and salt. In small bowl, combine buttermilk, orange juice,margarine, egg and zest. Add to flour mixture and mix only until moist. Stir in blueberries. Spoon into prepared muffing cups. Bake at 200ºC for 20-25 minutes, or until wooden pick inserted near center comes out clean. Origin: Journal American, April 7, 1993 Shared by: Sharon Stevens.