In a large mixing bowl, combine the heavy whipping cream, powdered sugar, and vanilla extract. Whip until stiff peaks form.

In another bowl, whisk together the vanilla instant pudding mix and milk until smooth.

Gently fold the whipped cream into the pudding mixture until fully combined.

In your baking dish, layer graham crackers on the bottom.

Evenly spread half of the cream filling over the graham crackers.

Add another layer of graham crackers on top of the filling.

Repeat the process with the remaining filling and finish with a final layer of graham crackers.

In a microwave-safe bowl, combine chocolate chips and butter. Heat in 30-second intervals, stirring until smooth.

Pour the ganache over the final layer of graham crackers, spreading it evenly.

Chill in the refrigerator for at least 4 hours before serving.