01 -
Break the chocolate bars into small pieces. Reserve 8 small pieces for garnish.
02 -
Add marshmallows and milk to a medium saucepan. Heat over medium-low, stirring constantly until fully melted and smooth.
03 -
Remove the saucepan from heat. Stir in chocolate pieces. Mix until completely melted and silky.
04 -
Let the chocolate mixture cool for about 30 minutes.
05 -
Gently fold in the whipped topping until fully combined.
06 -
Spoon the mixture into the Oreo crust. Smooth the top evenly.
07 -
Spray plastic wrap lightly with nonstick spray. Cover the pie and refrigerate for at least 4 hours, or up to 2 days.
08 -
Top with a dollop of whipped topping and reserved chocolate pieces before serving.