Preheat oven to 350°F. Line a loaf pan with parchment paper and set aside.
In a large mixing bowl, whisk together the mashed bananas, coconut oil, maple syrup, egg, applesauce, and vanilla until well blended.
Add in the baking soda, salt, flour and walnuts, and mix until everything is just moistened—do not overmix.
Transfer the batter to the prepared loaf pan. Bake in preheated oven for 45-55 minutes, or until the top is golden brown, and a toothpick inserted into the center comes out clean. Let cool completely before slicing.
Notes
This is a lightly sweet banana bread. If you like a sweeter bread, add in ¼ or more of cane sugar or granulated sugar.If you like a more moist and dense banana bread, undercook your bread by 4-5 minutes (until a toothpick inserted into the middle doesn't come out completely clean, but isn't super goopy). And then let it cool completely before slicing.