1 package chocolate sandwich cookies
1/4 cup melted butter
2 packages instant vanilla pudding mix
3 cups cold milk
1 container whipped topping, thawed
1 cup powdered sugar
Gummy worms, optional
Crush the chocolate sandwich cookies into fine crumbs
Mix the cookie crumbs with the melted butter
Press half of the crumb mixture into the bottom of a serving dish
Whisk the pudding mix with the cold milk until thickened
Stir the powdered sugar into the pudding
Fold in the whipped topping
Spread half of the pudding mixture over the cookie layer
Add the remaining cookie crumbs
Spread the rest of the pudding mixture on top
Top with gummy worms if desired
Chill before serving