Preheat the oven to 350 F and position a rack in the lower third of the oven.
Add dry ingredients to a bowl: flour, ginger, cinnamon, nutmeg, cloves, sea salt, allspice, and baking soda.
Whip aquafaba with hand mixer for a minute. It should turn white and foamy.
Mash banana with a fork and add to bowl with aquafaba, brown sugar, and olive oil. Whisk with hand mixer.
Add wet ingredients to the dry ingredients. Add molasses and milk.
Whisk it all together, pour mixture into a 9 x 5 loaf pan, add a 4th banana on top if desired, and bake in the lower third of the oven for 55-60 minutes (or until a toothpick comes out clean from the center).