Caramel-Chocolate Bars
["1 (14 oz.) bag caramels", "1/3 c. evaporated milk", "1 (18 1/2 oz.) box Swiss chocolate cake mix", "1/3 c. evaporated milk", "3/4 c. melted butter or regular margarine", "1 (6 oz.) pkg. semi-sweet chocolate pieces", "1 c. chopped walnuts"]
["Combine caramels and 1/3 cup evaporated milk in top of double boiler.", "Cover and place over boiling water until melted, stirring occasionally.", "Keep warm.", "Combine cake mix, 1/3 cup evaporated milk and butter in large bowl.", "Beat with electric mixer at medium speed for 2 minutes, scraping bowl occasionally.", "(Mixture is thick.)", "Spread one-half mixture in greased 13 x 9 x 2-inch baking pan."]
["caramels", "milk", "Swiss chocolate cake mix", "milk", "butter", "semi-sweet chocolate pieces", "walnuts"]