In a medium mixing bowl, stir together the milk and pudding mix until the pudding has thickened.
Fold in the whipped topping and Oreos just until combined.
Cover and refrigerator for at least one hour.
Notes
Storage:
To Store: You can store your Oreo fluff it in an air-tight container in the refrigerator for up to one week.
Tips:
Oreo cookies can be crushed with a rolling pin or in a food processor.
Before serving the fluff, make sure you chill it for at least 1 hour (2 hours is even better). You want to make sure the pudding has enough time to set up.