Step 1

Using a food processor, process 30 Oreos cookies until they are a fine crumb (it's ok if there are a few cookie chunks).

Step 2

Set aside 1/4 cup for the topping.

Step 3

In a large bowl, combine remaining cookie crumbs with melted butter until fully incorporated.

Step 4

Press cookie mixture into an ungreased 9-inch square dish; set aside.

Step 5

In a large bowl, beat the cream cheese until light and fluffy.

Step 6

Add peanut butter and 1 cup confectioners sugar and stir together until smooth.

Step 7

Fold in the whipped topping. Spread over crust.

Step 8

Sprinkle with chopped peanut butter cups.

Step 9

In another large bowl, beat the milk, pudding mix, and confectioners sugar until soft-set (about 2 minutes).

Step 10

Fold in whipped topping and continue folding until fully combined. Spread over chopped peanut butter cups. (I did not use all the chocolate mousse for this layer, some was put in individual cups for the kids.)

Step 11

Crush remaining cookies; sprinkle over the top. Cover and chill for at least 2 hours.