Ingredients

1/4 cup butter, softened3/4 cup sugar2 large eggs, room temperature3/4 cup mashed ripe banana (about 1 large)1/2 cup sour cream2-1/4 cups all-purpose flour1 teaspoon ground cinnamon3/4 teaspoon baking soda1/2 teaspoon salt1/2 cup chopped walnutsOptional: Additional walnuts, semisweet chocolate chips or coarse sugar

Preparation

Preheat oven to 350°. Beat butter and sugar until blended. Add eggs, 1 at a time, beating well after each addition. Stir in banana and sour cream. Whisk together flour, cinnamon, baking soda and salt. Add to butter mixture, stirring just until moistened. Fold in 1/2 cup walnuts.

Transfer to a greased 9x5-in. loaf pan. If desired, sprinkle with additional walnuts.

Bake until a toothpick inserted in center comes out clean, 50-60 minutes. Cool in pan 10 minutes before removing to a wire rack to cool.