In heavy pan, melt:

1 pkg.  caramels (about 50)
1/3 cup evaporated milk

Set aside the above mixture.  Grease and flour a 9x13 pan.  In a large bowl mix the following:

1 pkg. German Chocolate Cake Mix
1/3 cup evaporated milk
1 cup chopped nuts (optional)
1/2 cup butter (melted, but not hot)

By hand, mix the dough until it holds together.  Press half of it into the pan.  Bake at 350ºF for 6 minutes.  Sprinkle with:

6 oz. chocolate chips

Spread the caramel over the chocolate chips.  Crumble the rest of the dough over the caramel.  Bake 15 minutes at 350ºF, it will set when it is cool.