Lemon Bars
["2 c. flour", "1 cube butter", "1/2 c. powdered sugar"]
["Mix as a pastry crust.", "Mixture will be loose.", "Put in bottom of a greased 9 x 13-inch pan.", "Bake at 325\u00b0 for 20 minutes or until light brown."]
["flour", "butter", "powdered sugar"]