Preheat oven to 350 F. Line a 9-inch bread pan with parchment paper, and set aside. I usually first spray the pan with cooking spray or rub it with coconut oil to help to parchment paper stay put or use document clips to secure the parchment paper.
In a large mixing bowl, begin mashing 3 overripe large bananas. Measure out 1 ¾ cup of mashed banana and return it to the mixing bowl, discarding any extra.
Add the oil, eggs maple syrup, vanilla extract, and apple cider vinegar to the bowl with the mashed banana. Whisk together until well incorporated.
In a separate mixing bowl combine the dry ingredients (chickpea flour, cassava flour, baking soda, and salt). Whisk together to combine.
Add the dry ingredients to the bowl with the wet ingredients. Whisk together to form a batter with no lumps or streaks of dry ingredients. Avoid over-mixing.
Pour the batter into the lined bread pan and place in the oven for 45-55 minutes (50 minutes was perfect for my oven) or until you can pierce the center with a toothpick and have it come out clean. The outside browns easily, so it is not the best indicator of doneness. If the center is not done but the top is getting dark you can loosely tent the pan with tinfoil for the last 5-10 minutes.
