Lemon Squares
["2 c. flour, unsifted", "1/2 c. confectioners sugar", "2 sticks margarine", "4 eggs", "2 c. sugar", "10 Tbsp. fresh lemon juice", "4 Tbsp. flour", "1/2 tsp. baking powder", "confectioners sugar"]
["Mix together flour, sugar and margarine (soften margarine in microwave).", "Press in greased 11 x 14-inch pan.", "Bake for 20 minutes at 350\u00b0."]
["flour", "confectioners sugar", "margarine", "eggs", "sugar", "lemon juice", "flour", "baking powder", "confectioners sugar"]