I got this recipe from a friend years ago and it's a MUST at Youth Group events or our church picnics. You can also try vanilla oreos with a chocolate pudding, or use the original cream mix and layer it with fresh berries instead for a lighter version. Use sugar-free pudding and topping and fruit and you have something diabetics can eat! Very versatile!
put cream cheese in the bowl of an electric mixer. Gradually add 1 cup of the milk until smooth, then add the pudding mix and the remaining milk. Beat until smooth. Stir in large container of Cool Whip.
Place 1 and 1/2 package of Oreo cookies in a gallon zip lock bag, remove most air and seal. With a rolling pin gently tap the cookies until they are crushed into chunky pieces (a cookie is split into 4-5 pieces, for example). Put into a bowl, add the butter and toss until well-coated.
Starting with the cookie mix, build layers of cookies and cream, ending with cream. This looks great if done in a glass or clear bowl.
If desired, top with another 8 oz container of Cool Whip and decorate with the remaining half package of whole Oreos, if they're not already eaten!
THIS DESSERT IS MUCH BETTER WHEN REFRIGERATED FOR 10-12 HOURS BEFORE SERVING.