Banana Cake
["2/3 c. butter", "2 1/2 c. flour", "1 2/3 c. sugar", "1 tsp. baking powder", "1 tsp. soda", "1 tsp. salt", "1 1/4 c. mashed ripe bananas", "2/3 c. buttermilk, divided", "2 eggs", "2/3 c. chopped walnuts"]
["Place butter in bowl.", "Stir in flour, sugar, baking powder, soda and salt.", "Add bananas and buttermilk.", "Mix until moistened and beat 2 minutes on medium speed.", "Add 1/3 cup buttermilk and eggs and beat 2 minutes longer.", "If desired, fold in walnuts. Bake in 2 greased and floured 9 x 9 pan at 350\u00b0 for 35 minutes. Cool 10 minutes."]
["butter", "flour", "sugar", "baking powder", "soda", "salt", "mashed ripe bananas", "buttermilk", "eggs", "walnuts"]