Preheat oven to 325°. Spray a 9x5-inch loaf pan with baking spray with flour.
In a large bowl, whisk together flour, sugar, baking soda, and salt. In a medium bowl, whisk together banana, melted butter, eggs, and vanilla. Fold banana mixture into flour mixture until just combined. Spread batter into prepared pan.
Bake until a wooden pick inserted in center comes out clean, 50 to 60 minutes. Let cool in pan for 10 minutes. Remove from pan, and let cool completely on a wire rack. Store in an airtight container for up to 3 days.
Recipe by Paula Deen Magazine at https://pauladeenmagazine.com/classic-banana-bread-recipe/