1 (20 ounce) package fudge brownie mix
1/2 cup vegetable oil
1/4 cup water
1 (5.9 ounce) package instant chocolate pudding mix
3 cups milk
1 (16 ounce) container frozen whipped topping, thawed
10 chocolate sandwich cookies, crushed
Prepare the fudge brownies according to package directions, using the oil, water and eggs. Bake in a 9x13 inch pan. allow to cool.
When brownies are cool, prepare the pudding; in a large bowl, combine pudding mix and milk. mix until smooth and set aside to thicken.
Cut the brownies into 3 inch squares. Line the bottom of a large serving bowl unevenly with 1/2 of the brownie squares. Pour half of the pudding over the brownies, then cover with half of the whipped topping. Repeat layers. Sprinkle top with crumbled cookies.