¼ cup salted butter, melted
2½ cups finely crushed cream-filled chocolate sandwich cookies (about 25 cookies)
16 ounces cream cheese, softened
7 ounces marshmallow creme
1 teaspoon vanilla extract
1 cup coarsely crumbled cream-filled chocolate sandwich cookies (about 7 cookies), plus more for garnish
* Stir together the melted butter and crushed cookies in a medium bowl. Line the bottom and sides of a 9-inch square pan with foil, leaving a 2-inch overhang on all sides; lightly grease foil with cooking spray. Press the cookie mixture into the bottom of the prepared pan.
* Beat the cream cheese, marshmallow cream, and vanilla in a large bowl with an electric mixer on medium speed until light and fluffy, two to three minutes. Gently fold in the coarsely crumbled cookies. Add the cream cheese mixture to the pan, spreading it evenly over the cookie crust. Cover and chill for at least four hours or up to three days.
* Lift mixture from the pan using the foil overhang as a handle, and cut into bars. Garnish with more coarsely crumbled cookies, if desired.