Use a food processor (or a zip top bag and a rolling pin) to crush the Oreos into fine crumbs.
36 Oreo cookies
Into a medium bowl, pour in the cookie crumbs and melted butter. Stir until thoroughly mixed.
6 Tablespoons butter
Pour into a 9 x 13 baking dish and use a spatula (or the bottom of a measuring cup) to evenly press the crumbs across the dish.TIP - If you have extra time, I highly recommend popping the dessert into the freezer after each step. It makes it easier to spread each layer.
In the same medium bowl, add the cream cheese and beat with a hand mixer until fluffy. Add in the 2 Tablespoons of milk and sugar and mix well.
Do not remove the cream centers from the cookies. Use regular Oreos, not Double Stuff. 36 cookies = 3 cups of crumbs.
Be sure to take your cream cheese out of the fridge 30-45 minutes before starting your dessert lasagna. I like to take it out, cut it into slices, and let it rest on the counter. That helps it come to room temp quicker!
Use 2 boxes of instant pudding, do not use Cook n Serve.
If you prefer, you can use an equal amount of homemade whipped topping instead of Cool Whip. To substitute whisk 3 cups of heavy whipping cream and 3 tablepoons of powdered sugar until medium peaks form.