Favorite Chocolate Sauce

heat oven to 350 degrees. melt caramels with 1/3 cup of the milk in heavy saucepan over low heat, stirring frequently until smooth. set aside. mix remaining milk, cake mix, and margarine or butter in large bowl. press 1/2 of the cake mixture onto the bottom of 13 x 9 inch baking pan. bake 8 min. sprinkle 1 cup of walnuts and 1/2 cup of chips over crust, top with carmel mixture, spreading to edges of pan. top with teaspoons of remaining cake mixture, press gently into carmel mixture. sprinkle with remaining 1/2 cup walnuts and 1/2 cup chips. bake 18 min. cool, cut into bars.

recipe from "Kraft Ceative Kitchens"