1 c. sugar
1/2 c. unsalted butter, softened
2 eggs
1 tsp. vanilla
3 ripe bananas, mashed
2 c. flour
1 c. blueberries
1 tsp. baking soda
1/2 tsp. baking powder
1/2 tsp. salt
1/2 c. chopped walnuts

Beat sugar and butter; add eggs. Stir in mashed bananas. Measure 1 tablespoon flour and toss with blueberries. Sift remaining flour with baking soda and baking powder and salt; stir everything together. Grease and flour a 9 x 5 inch loaf pan. Bake in a 350 degree oven for 55 to 60 minutes.