Unwrap and break peppermint patties into forths. Place peppermint patties and milk in a microwave safe bowl and microwave for 30 seconds on high. Stir with a whisk until milk and patties are combined and smooth. Let cool for 10 minutes.

Fold in whipped topping until combined. Pour into pie crumb shell and place in the freezer for at least 1 hour. This picture was taken after it had been in the freezer for about 3 hours and it was still wasn't quite frozen to my liking, but I needed a picture!!!:) I would recomment freezing overnight for a nice frozen pie, but it's good either way!

About an hour before you're ready to serve this, prepare your drizzle by mixing the sugar, cocoa and corn startch in a microwave safe bowl. Whisk in the water until combined. Cook in the microwave for 30 second intervals, stirring afterward until pretty thick. Remove and add butter and peppermint patties broken into fourths. Stir until melted and combined. Place in fridge until cold. You don't want to drizzle warm chocolate on your frozen pie!

Drizzle chocolate over pie pieces and sprinkle with peppermint patty pieces.

Enjoy!