Laurene'S Shortbread Cookies
["2 sticks margarine", "3/4 c. 10x sugar", "1 Tbsp. vanilla", "1/2 tsp. salt", "2 c. flour", "1 bag peanut butter chips", "nuts (optional)"]
["Mix margarine with sugar.", "Add vanilla, salt and flour; mix well.", "Add chips, nuts and shape into balls and press flat.", "Bake at 325\u00b0 until light brown (approximately 13 minutes)."]
["margarine", "sugar", "vanilla", "salt", "flour", "peanut butter", "nuts"]