Chocolate Banana Muffins

1 1/4 cup flour                                    
1 tsp. baking powder
1/2 tsp baking soda
1/4 tsp salt
3/4 cup sugar
1/4 cup cocoa
3 small ripe bananas, mashed
1/2 cup egg substitute
2 tbsp vegetable oil
2 tbsp buttermilk
1 tsp vanilla extract

* combine first 6 ingredients in a large bowl, then make a well in the center
* combine bananas & remaining ingredients, add to dry mixture, stir just till moist.  Spoon batter into muffin pan, (greased or use liners) & bake at 400 degrees for 15 minutes.