Chocolate Caramel Nut Cake

1 (18.25 ounce) package German chocolate cake mix

1 cup semisweet chocolate chips

1 (5 ounce) can evaporated milk

14 ounces individually wrapped caramels

3/4 cup butter

1 cup walnuts

Directions

1. Preheat oven to 350 degrees F (175 degrees C). Lightly grease one 13x9 inch cake pan.
2. Make cake mix according to package directions. Pour 1/2 of the batter into the prepared pan and bake at 350 degrees F (175 degrees C) for 20 minutes.
3. In a saucepan over medium low heat melt caramels, margarine, and milk. Pour over top of baked cake. Top with chocolate chips and 1/2 of the walnuts. Pour remaining cake batter over top and sprinkle with the remaining walnuts. Bake at 350 degrees F (175 degrees C) for 20 to 25 minutes mo