Grease one 9"x5" loaf pan and preheat the oven to 350ºF.
In a large bowl or mixer, combine the mashed bananas, eggs, coconut oil, vanilla extract and nut butter until fully combined.
Add the coconut flour, cinnamon, baking soda, baking powder, and sea salt to the wet ingredients and mix well.
Pour the batter into the prepared pan and spread it evenly. Bake in the preheated oven for about 50-60 minutes. A toothpick inserted into the center should come out clean.
Remove from oven and allow to cool on a wire rack for about ½ hour. Flip out onto a cooling rack to finish cooling completely.
Once the banana bread is completely cool, slice it into 1” thick slices.
In a medium mixing bowl, whisk together the eggs, coconut milk, honey or maple syrup, and vanilla extract.
Heat a griddle or skillet over medium-high heat and grease wth a bit of coconut oil. Soak each slice of banana bread in the egg coconut milk mixture. Place in the pan and cook for 3-4 minutes on each side, or until golden brown. Serve immediately with caramelized bananas.
For the caramelized bananas
Melt the coconut oil in a skillet over medium heat. Add the sliced bananas in an even layer and sprinkle the coconut sugar on top. Cook for 2-3 minutes or until the sugar has caramelized, coating the bananas. Serve immediately with banana bread french toast.