Place oreos in a large ziplock bag. Crush the Oreos into fine crumbs. ( you can also use a food processor for this step)

Into a medium bowl, combine cookie crumbs and melted butter. Stir until thoroughly mixed.

Pour into a 9 x 13 baking dish and use a spatula to evenly press the crumbs into the baking dish.

In a medium bowl, beat cream cheese with a hand mixer until fluffy. Next add in the vanilla, 2 Tablespoons of milk and 1/4 cup of sugar and mix well.

Divide Cool Whip in half . Take one of the halves and mix into the cream cheese mixture. Spread the cream cheese mixture over the cookie crust and place in the fridge for 10-15 minutes to set.

In the meantime, in a large bowl, mix together the 2 pudding mixes and 3 1/4 cups cold milk and beat until it starts to thicken.

Spread the pudding mixture over the cream cheese layer and put back into the fridge to set for another 10-15 minutes.

Once set, gently spread the remaining half of the Cool Whip over the top and sprinkle with mini chocolate chips.

Cover with plastic wrap and let chill for at least 4 hours in the fridge or 1 hour in the freezer before you slice.