Zucchini Blondies(May Be Doubled)  
["1 c. flour", "1 tsp. baking powder", "1/2 tsp. salt", "1/2 c. walnuts, chopped", "1 c. shredded unpeeled zucchini, squeezed dry", "2 eggs", "1 tsp. vanilla", "1/8 tsp. baking soda", "1/3 c. margarine, softened", "1 1/4 c. light brown sugar", "3/4 c. chocolate chips"]
["Spray an 8 x 8 x 2-inch pan.", "Line pan with waxed paper.", "Spray paper.", "Sift together flour, baking powder, salt and baking soda in a small bowl.", "Beat together butter and sugar in medium size bowl until light and fluffy.", "Add eggs and vanilla and beat lightly. Stir in dry ingredients.", "Fold in zucchini, walnuts and half the chocolate chips.", "Put rest of chips on top.", "Bake in a preheated 350\u00b0 oven for 40 minutes or until done.", "Check after 30 minutes, if darkening too quickly.", "Cover loosely with foil.", "Cool in pan on rack.", "When completely cool, loosen edges with knife; invert onto plate.", "Remove waxed paper.", "Invert again onto serving plate.", "Cut into 16 (1-inch) squares.", "Makes 16 servings at 206 calories per serving."]
["flour", "baking powder", "salt", "walnuts", "zucchini", "eggs", "vanilla", "baking soda", "margarine", "light brown sugar", "chocolate chips"]