Banana Nut Muffins
["1/2 c. butter, softened", "1 c. sugar", "2 eggs", "2 ripe bananas, mashed", "2 c. flour", "1 tsp. salt", "1 tsp. baking powder", "1/2 tsp. baking soda", "1 c. buttermilk", "1/2 c. pecans, chopped", "1 tsp. vanilla"]
["Preheat oven to 400\u00b0.", "Grease 12 muffin pan cups or use paper liners.", "Beat together butter and sugar at medium speed until light and fluffy.", "Add eggs, 1 at a time, beating well after each addition.", "Beat in bananas until smooth.", "Mix together flour, salt, soda and baking powder.", "Alternately stir flour mixture and buttermilk into egg mixture until dry ingredients are just moistened.", "Stir in nuts and vanilla.", "Do not overmix batter; it should not be completely smooth.", "Spoon batter in muffin cups, filling 2/3 full.", "Bake until lightly browned, 15 to 18 minutes. Serve warm."]
["butter", "sugar", "eggs", "bananas", "flour", "salt", "baking powder", "baking soda", "buttermilk", "pecans", "vanilla"]