Prepare the chocolate cake according to the package or your favorite recipe, allow to cool completely in the pan for about 30 minutes, then slice into bite-sized pieces.

Prepare the chocolate pudding according to the box instructions, usually taking about 5 minutes of whisking, and refrigerate for 15 minutes to chill.

Mix the cherry pie filling with kirsch or cherry juice in a medium bowl.

In a large mixing bowl, whip the cold heavy whipping cream with powdered sugar and vanilla extract for about 3-5 minutes until soft peaks form.

In a trifle bowl, layer the chocolate cake, chocolate pudding, cherry filling, and whipped cream. Repeat until all ingredients are used, finishing with whipped cream on top.

Cover with plastic wrap and refrigerate for at least 1 hour, or overnight for best flavor.

Garnish the trifle with fresh cherries, shaved chocolate, and a dusting of icing sugar or cocoa powder before serving.