A Good Walnut Cookie
["1 1/2 c. all-purpose flour", "1 tsp. baking powder", "1/2 c. oleo, softened", "1 c. granulated sugar", "2 egg yolks", "2 Tbsp. milk", "1 tsp. vanilla", "2 egg whites", "1 c. light brown sugar, packed", "1 c. coarsely chopped walnuts"]
["Preheat oven to 350\u00b0.", "Spray a 9 x 9 x 2-inch pan. Sift flour and baking powder.", "Put oleo and granulated sugar in mixing bowl. Beat on high 2 minutes. Add egg yolks to creamed mixture and beat until light and fluffy. Add flour and milk, beating until just combined. Add vanilla.", "Pour cookie mix in pan, smoothing in pan. Place on center rack in oven and bake 20 minutes. Beat egg whites in small bowl at high speed until stiff. Gradually add brown sugar, beating well.", "Pour egg whites into smaller bowl. Fold nuts into brown sugar mixture. Spread over baked cookie crust.", "Bake 20 minutes longer.", "Cut into bars when cooled.", "Makes 16 bar cookies."]
["flour", "baking powder", "oleo", "sugar", "egg yolks", "milk", "vanilla", "egg whites", "light brown sugar", "walnuts"]