Let all sit at room temperature to soften, then mix all together with powdered sugar with all above ingredients. Then add milk, then add pudding to all the above ingredients. Set all aside.
Crush Oreo cookies into nothing but crumbs in another large bowl. Once all done, take a large Tupperware container. Layer the ingredients to make the dessert by first a layer of crumbs, the above pudding mixture and continue to do so until all used up. Layer top with other half of large container of Cool Whip left and sprinkle a few crumbs on top.
