Butterscotch Brownies
["1/4 c. butter, melted", "1 c. brown sugar", "1 egg", "3/4 c. flour", "1 tsp. baking powder", "1/2 tsp. salt", "1/2 tsp. vanilla", "1/2 c. nuts"]
["Combine butter and brown sugar and melt over low heat.", "Let cool.", "Add eggs and dry ingredients, then vanilla and nuts.", "Spread in a greased 8-inch square pan and bake at 350\u00b0 for 20 to 25 minutes.", "When cool, cut into squares.", "Serves 12."]
["butter", "brown sugar", "egg", "flour", "baking powder", "salt", "vanilla", "nuts"]