Bake the cake in two 9-inch pans as directed.

Cool the layers completely, then slice each layer in half.

Heat the cream until steaming, then pour it over the chocolate chips.

Stir until smooth, then cool the ganache for 15 minutes.

Beat the cream cheese, powdered sugar, and vanilla until smooth.

Fold in the whipped topping.

Place one cake layer on a plate and spread on filling.

Repeat with the remaining layers and filling.

Pour ganache over the top and chill for 2 hours.