To turn it into an amazing milkshake: Chill the pie until firm. Cut into 8 slices. For each shake, in a blender, add 1 slice of the pie, 1/4 cup whole milk, 5 ounces ice cream, and 1 full-size Peppermint Patty. Turn on the blender and let it rip. Voila! Awesome milkshake. Serve topped with whipped cream and a mini Peppermint Patty.