Mimaw'S Butterscotch Squares
["1/2 c. melted butter", "1 c. brown sugar", "1 egg", "3/4 c. flour", "1 tsp. baking powder", "1 tsp. vanilla", "1 c. chopped walnuts"]
["In large saucepan, melt butter.", "Remove from heat.", "Add brown sugar and mix well.", "Add remaining ingredients and mix well.", "Pour into 8-inch square greased pan. Bake 25 minutes at 350\u00b0."]
["butter", "brown sugar", "egg", "flour", "baking powder", "vanilla", "walnuts"]