Saucepan Banana Fudge Walnut Brownies
["1/4 c. butter or margarine", "6 oz. chocolate chips", "3/4 c. flour", "1/2 c. sugar", "1/3 c. chopped nuts", "1 small banana, mashed or 1/3 c. banana", "1/2 tsp. vanilla", "1/4 tsp. baking powder", "1/4 tsp. salt", "1 egg, beaten"]
["In saucepan, melt butter and chips.", "Mix dry ingredients together and add all ingredients to mixture in saucepan, stirring enough to blend well.", "Pour into an 8 x 8-inch pan.", "Bake at 350\u00b0 about 30 minutes.", "Cut into 2-inch squares.", "Sprinkle with powdered sugar or frost, if desired."]
["butter", "chocolate chips", "flour", "sugar", "nuts", "banana", "vanilla", "baking powder", "salt", "egg"]