Ingredients

Putting it together

1.
Line 13x9-inch pan with foil, with ends of foil extending over sides. Spray with cooking spray.
2.
Separate OREO Cookies, leaving cream filling on 1 half of each cookie. Place cookie halves, cream sides up, on bottom of prepared pan. Break remaining (plain) OREO Cookie halves in half; reserve for later use.
3.
Prepare brownie batter as directed on package; pour over cookie halves in pan.
4.
Bake 25 to 28 min. or until toothpick inserted in center comes out with fudgy crumbs. (Do not overbake.) Cool 10 min.
5.
Top with mint patties in 6 rows of 4 mints each; cool brownie completely.
6.
Use foil handles to remove brownie from pan. Cut into 24 squares so that a mint is on top of each brownie square.
7.
Attach 2 candy eyes to top of each mint patty with dots of melted chocolate. Insert 2 of the reserved cookie halves into top of each brownie square for the bat's wings as shown in photo.

Substitute:Prepare using chocolate-covered cookie dough bites in place of chocolate-covered mint patties.

Shortcut:Use white decorating icing to attach the candy eyes to the mints instead of the melted chocolate.

Cut the Remaining Cookies:Use a serrated knife to cut the remaining (plain) cookie halves in half instead of breaking in half.