In a large bowl, beat together the pudding mix and milk with whisk for 2 minutes or until well combined.
Fold in the crushed Oreo cookies, marshmallows, and whipped topping.
Cover and refrigerate at least 2 hours before serving.
Garnish with additional Oreo cookies just before serving, if desired.
Notes
This recipe easily doubles or triples if you're feeding a crowd.
Swap out the vanilla pudding for another flavor! Try cheesecake, white chocolate, strawberry creme, any kind of chocolate, or another flavor you love!
Use a food processor to crush the cookies easily. You don't want to obliterate the cookies to crumbs - so just a couple of pulses should do it. If you don't have a food processor (or don't want to drag it out), a large freezer zip-top bag and a rolling pin also work great. Freezer bags are a little thicker and stand up better to crush the cookies, and as a bonus, there's no cleanup! 😊
You can also serve this recipe as a dip! Dipper ideas: any kind of cut-up fruits would be awesome dipped in this fluff recipe. You can also you an assortment of graham crackers, pretzels, cookies, animal crackers, sugar wafer cookies, or creme-filled tubular-shaped wafer cookies.