Crust
Crush 24 Oreos into fine crumbs.
Mix with melted butter and press firmly into a lined 9x9 pan.
Chill 15β20 minutes.
Filling
Beat cream cheese until smooth.
Add powdered sugar + peppermint extract.
Mix in green coloring if using.
Fold in Cool Whip until light and fluffy.
Stir in chopped Andes mints.
Assemble
Spread evenly over crust and smooth the top.
Refrigerate 2β3 hours (or overnight for best texture).
Slice & Serve
Cut into squares.
Top each piece with a dollop of Cool Whip and sprinkle with extra Andes mints right before serving πβ¨