Candy Bar Cake
["1 (2 layer) pkg. Duncan Hines devil's food cake mix", "1 1/2 c. milk", "3 eggs", "3/4 c. oil", "1 (4 oz.) pkg. vanilla instant pudding mix", "1/2 c. sugar", "1 c. powdered sugar", "8 oz. cream cheese, softened", "12 oz. Cool Whip", "1 c. chopped pecans (optional)", "3 small plain Hershey candy bars (frozen), chopped"]
["Combine cake mix, milk, eggs, oil and pudding mix in bowl; mix well.", "Pour into 3 greased 9-inch round cake pans.", "Bake at 325\u00b0 for 30 minutes.", "Cool in pan for several minutes.", "Remove to wire rack to cool completely."]
["layer", "milk", "eggs", "oil", "vanilla instant pudding mix", "sugar", "powdered sugar", "cream cheese", "pecans"]