Cream the sugar and butter together in a large bow, until light and fluffy

Mix in eggs and then vanilla

In separate bow, sift flour, salt, and baking soda

Combine two mixtures and add buttermilk

Stir just until it's combined

Fold in mashed bananas

Pour into prepared 9x13 baking pan and bake at 325 for approximately 60 minutes or until a toothpick inserted into center of the loaf comes out clean