01 -
Preheat oven to 350°F. Grease 8x4-inch loaf pan generously with cooking spray.
02 -
In large bowl, combine mashed bananas, melted butter, sugar, egg, and vanilla.
03 -
Whisk together gluten-free flour, baking soda, baking powder, and salt in separate bowl.
04 -
Add dry ingredients to wet ingredients and stir until fully combined. Batter will be slightly lumpy.
05 -
Pour batter into prepared pan. Bake 50-60 minutes until tester comes out clean.
06 -
Cool on rack 15 minutes before removing from pan. Cool completely before slicing.