edible sugar pearls, sprinkles, or other decorations
Mix you milk and vanilla pudding mix in a large bowl. Put in the refrigerator to chill for at least an hour, or until thickened.
Place Oreos in a plastic zipper bag and use a rolling pin to crush them into small crumbles. You could also do this in by pulsing them in a food processor if you have one.
Add Oreo crumbles to the set vanilla pudding and mix well.
Add whipped topping and chocolate pudding mix to the vanilla pudding mixture and fold them in, folding them in until they're completely incorporated into the mixture.
Let mixture chill for at least an hour or until firm.
Using a star piping tip, pipe swirls of the grey stuff on top of sugar cookies.
Add sprinkles, candy pearls, or other decorations to the top of the grey stuff.
Enjoy immediately or sometime that day.
Pipe grey stuff on cookies then keep at room temperature until serving. Just like with cupcakes, the piped grey stuff can start to melt if you have it outside at hot temperatures. It should be mostly okay but I recommend not leaving it out in the heat for too long.Enjoy these the day you make them. They’re not great kept in the fridge because the cookies tend to get hard.