Pre-heat your oven to 350° F. Line a standard loaf pan with parchment paper and set aside.
First, make the date paste - in a high powered blender or food processor, add in the dates and water/ milk and pulse until you get a paste-like texture. It’s okay if there are chunks/pieces remaining.
In a large bowl, whisk the mashed bananas, date paste, coconut oil, eggs and vanilla until well combined and set aside.
In a medium sized bowl, mix the oat flour, almond flour, rolled oats, flaxseed meal, baking soda, baking powder, cinnamon and sea salt. Make sure you do not pack these flours, instead spoon them into cups and level off with a knife.
Add the dry ingredients to the wet and mix with a wooden spoon until you get a cohesive mixture. A few dry lumps here and there is okay (be careful not to overmix). Next, add the chocolate chips and give it another stir. Scoop the batter into the loaf pan and add more chips to the top.
Bake for approx. 1 hour to 1 hour and 10 minutes or until a thermometer inserted into the center reaches 200° F. You may need to add a piece of tin foil to the top at around the 40 minute mark so it doesn’t get too browned.
Take it out of the oven and let the bread cool for 15 minutes before transferring to a wire rack. Then let it cool completely until slicing.
Store at room temperature for 4-5 days or in the fridge for about a week. Slice and store in the freezer for long term!