German chocolate carmamel brownies

1 package (l4 ounces)caramels
 2/3 cup evaporated milk, divided
 l package (18-1/4 ounces) German Chocolate cake mix
 2/3 cup butter or margarine melted
 l cup (6 ounces) chocolate chips
 Melt caramels in a double boiler oe microwave. Stir in 1/3 cup milk and set
 aside. In a mixing bowl,combine cake mix butter and remaining milk: set
 half aside and press other half intp a greased 13in x 9in x 2 in baking
 pan. Bake at 350 degrees for 6 minutes. Remove from oven and sprinkle with
 chocolate chips. Pour caramel mixture over, spoon reserved cake mixtureon
 top. Return to oven for 20 min.