Step 1

Chop chocolate and place in a medium-sized microwave-safe bowl. Heat on 50% power in the microwave in 30-second increments, stirring between each, until melted and smooth.

Step 2

Stir sweetened condensed milk into chocolate. Set aside. Doing this before making the whipped cream ensures the chocolate cools enough. Otherwise, let it sit about 5-10 minutes before using.

Step 3

Place heavy whipping cream in the bowl of a stand mixer (or a large bowl if using a hand mixer). Beat until stiff peaks (whipped cream) forms, slowly adding powdered sugar and vanilla during mixing.

Step 4

Carefully FOLD half of the whipped cream mixture into the chocolate mixture. Do not stir or you will break the whipped cream. Place in prepared pan. Top with remaining whipped cream. Shave extra chocolate on top, for garnish, optional.

Step 5

Chill pie at least 2 hours before slicing and serving. Store loosely covered in refrigerator.