Pour the pudding mixture into the prepared crust and smooth the top with a spatula.
In a separate bowl, beat the heavy whipping cream with an electric mixer on medium speed until it begins to thicken. Add the powdered sugar and vanilla extract, and continue beating until soft peaks form.
Spread the whipped cream over the pudding layer in the pie. For an elegant touch, scrape the seeds from a vanilla bean and sprinkle them over the top.
Chill the pie in the refrigerator for at least 4 hours or until set. Slice and serve chilled.
To mix things up, you can use different flavors of instant pudding for the filling, such as chocolate or butterscotch. For a gluten-free version, use gluten-free graham crackers for the crust. If you prefer a lighter topping, you can substitute the whipped cream with a store-bought whipped topping. For a more decadent pie, add a layer of sliced bananas or strawberries between the pudding and whipped cream layers. Finally, to add a festive touch, consider drizzling a little caramel or chocolate sauce over the whipped cream before serving.