Scottish Shortbread Cookies
["1 lb. butter", "1 c. Crisco", "6 c. flour, sifted once", "1 c. brown sugar", "1 c. white sugar"]
["Cream butter and Crisco well.", "Add brown sugar first a little at a time.", "Then the white sugar, then gradually the flour.", "I pat into two cookie sheets or a jelly roll pan.", "Should be quite thin. Bake at 325\u00b0 for 35 minutes."]
["butter", "Crisco", "flour", "brown sugar", "white sugar"]