Dottie Martin'S Shortbread
["1/2 lb. butter (I use regular salted table butter)", "1/2 c. superfine (bar/dessert) sugar", "1 1/2 c. flour", "1 c. flour"]
["All flour should be sifted twice to prevent heaviness.", "Set oven at 375\u00b0.", "(When baking in quantity, I bake in an approximately 12 x 18-inch cookie tin with a lip and cut into pieces about 2 1/2 to 3-inch square and 1/4-inch thick, 24 pieces, or make fingers by cutting into 48 pieces.)"]
["butter", "sugar", "flour", "flour"]