Move oven rack to low position so that tops of pans will be in center of oven.
Preheat oven to 350°F.
Grease bottoms only of 2, 8-inch loaf pans or 1, 9-inch loaf pan with shortening.
Mix sugar and butter in a large bowl.
Stir in eggs until well blended.
Stir bananas, water and vanilla; beat until smooth.
Stir in flour, Saco Cultured Buttermilk Blend, baking soda and salt just until moistened.
Stir in nuts.
Divide batter evenly between pans.
Bake 8-inch loaves about 1 hour, 9-inch loaf about 1 hour 15 minutes, or until toothpick inserted in center comes out clean.
Cool 10 minutes in pans on wire rack.
Loosen sides of loaves from pans; remove from pans and place top side up on wire rack.
Cool completely, about 2 hours before slicing.
Wrap tightly and store at room temperature up to 4 days or refrigerate up to 10 days.