In a saucepan, combine pudding mix with 1 1/2 cup milk. Cook until thick. Add rum flavoring and chopped cherries. Remove from heat. Let cool to room temperature.
In a large bowl, whip the cream. Add 1/2 of the cream to the pudding mixture and fold in. Pour pudding mixture into graham cracker crust.
Decorate with remaining whipped cream and then grated chocolate.
I believe this is the same recipe my mom had gotten from my grandmother. It was my dad's favorite pie, and mine too. My mom would only make it for my birthday. Thanks for sharing.