Optional: You can also use a tart dough instead of a graham cracker crumb crust if you prefer.
For a lighter filling, you can create a chocolate mousse. If you would like to make the chocolate mousse filling, once you have made the ganache, set it aside. In a separate bowl, beat one cup heavy cream until stiff peaks form. Mix in 1 to 2 tablespoons of confectionary sugar. Carefully fold the whipped cream mixture into the ganache filling to create a chocolate mousse. Pour the mousse into the prepared piecrust and let chill in the refrigerator until set.