Using a food processor or blender, start adding the ingredients in the order they appear. Stop blending after vanilla.
Add the dry ingredients and then blend again until everything is combined. You might have to stop one more time and use a spatula to help incorporate the dry ingredients into the batter. You should have a thick batter.
At this point, you can add the optional cinnamon, chocolate chips or chopped pecans. Mix lightly with a spatula by hand.
Transfer to a loaf pan lined with parchment paper.
Bake at 350°F for 40-45 minutes. It is ready when you touch the center of the bread either with your fingers or a back of a spoon and it feels firm.