Texas Toffee
["1/4 lb. saltines", "1 c. brown sugar, packed", "1 c. butter (not margarine)", "1 (12 oz.) pkg. chocolate chips", "chopped nuts (optional)"]
["Line pan with foil. Place crackers flat on bottom of pan. Boil butter and sugar 3 minutes. Spread over crackers. Bake in 400\u00b0 oven for 5 minutes. Sprinkle chocolate chips over this while hot. Return to oven to melt. Remove and spread evenly. Sprinkle with chopped nuts. Break into pieces when cool."]
["saltines", "brown sugar", "butter", "chocolate chips", "nuts"]