Preheat the oven to 350°F (175°C)
In a large bowl, mash bananas well
Add sugar, coconut oil, applesauce, vanilla, and pumpkin spice. Mix well with a wooden spoon.
In another bowl, combine gluten-free flour, baking soda and salt and mix well
Add half of dry ingredients to wet ingredients and mix, then add the rest and stir until mixed and a dough
Transfer to one 8-in. x 4-in. loaf pan coated with cooking spray.
Top with thinly sliced bananas (optional, but delicious)
Bake at 350° for 50-60 minutes or until a toothpick inserted near the center comes out clean.
Cool for 10 minutes before removing from pans to wire racks.