1 (3.9 ounce) package instant chocolate pudding mix
1/2 cup water
1 (14 ounce) can sweetened condensed milk
1 (8 ounce) container frozen whipped topping, thawed
1 (12 ounce) container frozen whipped topping, thawed
In a large bowl, combine pudding mix, water and sweetened condensed milk. Mix until smooth, then fold in 8 ounces whipped topping until no streaks remain.
In a trifle bowl or glass serving dish, place half of the brownies, half of the pudding mixture and half of the 12 ounce container of whipped topping. Top with 1/3 chopped candy bars. Repeat layers. Put more chopped candy bars on top for garnish. Refrigerate 8 hours before serving.