Grease and flour a standard loaf pan. Cut a strip of parchment paper about the width of the pan, and line the pan with it. This will aid in removing the bread when it’s finished.
In a large bowl add splenda, baking soda, baking powder.
Add eggs and vanilla, mixing well.
Add melted butter, mixing well.
Pre-cut the bananas into small chunks, and mix them into the batter. Blend the batter more thoroughly with a pastry blender.
Stir in the flour.
Stir in any optional ingredients.
Pour batter into the prepared loaf pan and bake for 1 hour, until a knife inserted in the center comes out clean.
Immediately lift the bread out of the pan, and cool it on a wire rack.