Lilco Lemon Bars
["1 1/2 c. plus 3 Tbsp. unsifted flour", "1/2 c. confectioners sugar", "1/4 c. cold margarine or butter", "1 1/2 c. granulated sugar", "4 eggs, slightly beaten", "1 tsp. baking powder", "1/2 c. lemon juice concentrate", "additional confectioners sugar"]
["Preheat oven to 350\u00b0.", "In medium bowl, combine 1 1/2 cups flour and 1/2 cup confectioners sugar.", "Cut in margarine or butter until crumbly.", "Press onto bottom of lightly greased 13 x 9-inch baking pan.", "Bake 15 minutes."]
["flour", "confectioners sugar", "cold margarine", "sugar", "eggs", "baking powder", "lemon juice concentrate", "additional confectioners sugar"]