Preheat oven to 350F.
Grease the sides and bottom of a loaf pan with coconut oil.
Place 2T of coconut oil, eggs, honey, vanilla, and vinegar into a mixer and beat on high for 30 seconds. (You can use a stick blender or hand mixers as well).
Combine the coconut flour, almond flour, baking soda, and sea salt in a bowl, then add them to the wet ingredients, beating on high until combined.
Place the coconut milk and bananas in a separate bowl and mash until it resembles baby food.
Add the banana mixture to the batter and beat on medium until thoroughly combined.
Mix in optional add ins if desired.
Pour the batter into the prepared loaf pan and bake for 40-45 minutes, until a toothpick inserted comes out clean.
Remove from the oven and allow the loaf to cool for about 15 minutes.