Maple Butterscotch Brownies
["3 c. packed brown sugar", "1/2 c. margarine (melted)", "3 tsp. mapleine", "4 eggs", "3 c. unsifted flour", "2 tsp. baking powder", "1 c. walnuts", "powdered sugar (optional)"]
["In a bowl, combine first three ingredients.", "Beat in eggs one at a time.", "Combine flour and baking powder.", "Add to mixture.", "Add walnuts.", "Spread on a 12 x 18-inch jellyroll pan.", "Bake at 350\u00b0 for 25 to 30 minutes or until brownies test done.", "These are delicious."]
["brown sugar", "margarine", "mapleine", "eggs", "flour", "baking powder", "walnuts", "powdered sugar"]