Prepare your chocolate cake according to the package instructions or your favorite recipe. Allow it to cool completely on a wire rack for about 30 minutes.
Cut the cooled cake into bite-sized pieces, roughly 1-inch cubes.
In a clear trifle dish or a large glass bowl, add half of the chocolate cake pieces to the bottom, forming a solid base.
Drizzle cherry juice over the layer of chocolate cake, allowing it to soak in for about ¼ cup.
Spread a layer of whipped cream over the soaked chocolate cake, aiming for about 1 cup for proper coverage.
Sprinkle ¼ cup of cherries evenly over the whipped cream layer.
Repeat steps 3 through 6 with the remaining chocolate cake, cherry juice, whipped cream, and cherries for two complete layers.
Garnish the top layer of your trifle with chocolate shavings.
Cover the trifle and refrigerate for at least 4 hours or ideally overnight.
Notes
Using quality ingredients will elevate your Black Forest Trifle's overall flavor. Allowing it to chill enhances the overall taste and texture.