Chocolate-Toffee Caramel Bars
["1 pkg. Pillsbury Moist Supreme Butter Recipe Yellow Cake mix", "1/3 c. oil", "2 eggs", "1 - 12 oz pkg. or 2 c. semi-sweet chocolate chips", "1 c. white vanilla chips", "3 - 1.4 oz. toffee bars cut into pieces", "1/2 c. butter", "32 vanilla caramels, unwrapped", "1 - 14 oz. can sweetened condensed milk (can be fat-free)"]
["Heat oven to 350\u00b0.", "Grease 9 x 13 pan.", "Combine cake mix, oil and eggs.", "Blend well.", "Stir in chips and candy bars.", "Mixture will be thick.", "Press 1/2 of cake mixture into greased pan.", "Bake 10 minutes."]
["Moist Supreme Butter", "oil", "eggs", "semi-sweet chocolate chips", "white vanilla chips", "toffee", "butter", "vanilla caramels", "condensed milk"]