Beat the 16 tablespoon butter, 1 banana, and 1 ½ cups sugar in mixer until creamy.
Add the 5 tablespoons of aquafaba, 1 tablespoon vanilla, and 1 teaspoon almond extract and beat until fully combined. The butter mixture may look curdled, that’s totally fine.
In a separate large mixing bowl, whisk the 3 cups flour, 1 teaspoon baking powder, ½ teaspoon baking soda, and ¼ teaspoon salt until fully combined.
Add half of the flour mixture to the butter and mix until almost combined. Add half of the plant milk (¾ cup) and mix until it’s almost combined. Add the remaining flour and ¾ cup milk and mix until combined. Don’t over mix, you want the flour to be fully incorporated, just don’t over do it or the texture will be tough.
Add the ½ cup un-toasted coconut to mixture and stir until just combined. Optional.
Evenly pour the batter into the 2 greased and floured 9-inch (23 cm) cake pans.
Bake for 45 to 60 minutes on the center rack or until the center of the cake is done. Insert a wooden toothpick, if it comes out clean the cake is done.
Let cool for 5 minutes on a rack and remove the cakes from the pans and let cool completely on the racks.
After you remove the cake toast the coconut in the oven until it turns golden brown. Approximately 5 to 8 minutes. Optional.