Apricot Meringue Bars(Makes 16 Servings)  
["1/2 c. soft butter or margarine", "1/2 c. sugar", "2 egg yolks", "1 1/4 c. sifted flour", "1 c. apricot preserves", "2 egg whites", "1/3 c. sugar", "1 c. finely chopped walnuts"]
["Set oven at moderate 350\u00b0.", "Blend butter, 1/2 cup sugar and egg yolks.", "Work in flour.", "Lightly flour hands and pat into well-greased 7 1/2 x 11 1/2-inch baking dish.", "Bake 15 minutes. Remove from oven and spread evenly with preserves.", "Beat egg whites until foamy; gradually beat in 1/3 cup sugar.", "Continue beating until peaks form, then fold in nuts.", "Spread carefully over preserves.", "Return to oven and bake 25 minutes.", "Cool and cut into bars.", "Makes about 16."]
["butter", "sugar", "egg yolks", "flour", "apricot preserves", "egg whites", "sugar", "walnuts"]