Turtle Brownies

Combine dry cake mix and butter with 1/3 cup evaporated milk. Press half of mixture into greased 9x13-inch pan. Bake at 350 degrees for 5 minutes. Unwrap caramels and melt with remaining 1/3 evaporated milk. Sprinkle chocolate chips over partially-baked brownie base. (You don't have to let this partially-baked brownie base cool befor adding chocolate chips.) Sprinkle on walnuts. Pour caramel mixture over top. Pat reserved cake mixture into flat pieces with your hands. Lay randomly on top of caramel. Bake at 350 degrees 20-25 minutes. Let cool before cutting.