Preheat oven to 350℉.
In a large bowl, whisk together the flour, salt, baking soda, cinnamon and nutmet, set aside.
In another bowl, mix the butter, brown sugar, eggs, sour cream, bananas and vanilla.
Spray 9 x 5-inch loaf pan with Baker's Joy. Spoon batter into pan and sprinkle top with 2 tablespoons brown sugar.
Bake in preheated oven for 45 minutes or until wooden pick inserted in the center comes out clean.
Cool in pan for about 10 minutes. Remove to a wire rack to cool completely before cutting.