By Sarah McNeal-Weaver   Nothing satisfies a sweet tooth like a warm slice of banana bread.   It pairs well with a morning cup of coffee and makes a great afternoon snack.   Here’s how you can whip up a loaf for your family.     WHAT YOU NEED 1 1/2 cups flour 1/2 cup sugar 1 tsp baking soda 1/2 tsp salt   1/2 tsp cinnamon 4 ripe bananas 1 egg, beaten 1 1/2 tsp vanilla 1/2 cup butter, melted and cooled 1/4 cup sour cream   HOW TO MAKE IT Preheat oven to 350 degrees; grease loa