Heat oven to 325 degrees. Line a loaf pan with parchment paper so that there is an overhang on both sides.
In a medium sized bowl mix together the organic canola oil and sugar. Stir in the mashed bananas, eggs, and vanilla.
Add the dry ingredients, flax seed (if using), and chocolate chunks. Stir. Sprinkle a few chocolate chunks on top.
Pour batter into the loaf pan and bake for approximately 60-65 minutes or until toothpick inserted in center comes out clean. Let cool in pan for about an hour, then remove the loaf from the pan and let cool further on a wire rack.
Notes
Allow this loaf to cool before slicing.Store leftover banana bread in an airtight container.