Heat oven to 350 degrees. Grease rectangular pan, 13 X 9 X 2 inches. Mix brown sugar, margarine, orange peel, orange juice, vanilla and eggs. Stir in flour and baking powder. Stir in dried fruits and walnuts. Spread batter in pan. Bake 20 to 25 minutes or until wooden pick inserted in center comes out clean; cool. Sprinkle with powdered sugar if desired. Cut into 2 X 1-1/2-inch bars. 32 Bars; 115 Calories Per Bar.
