Remove the chocolate bark from the fridge and unroll. It should start to break apart, but break it apart even more to sizes that fit your cake.
Add pieces of the bark along the tops and bottoms of the newly frosted fault line cake. It helps to add the bark right after you frost it so it sticks. You want it to look organic and natural so it doesn’t need to be perfect.
Chill the cake in the fridge for 20 minutes.
Melt the other half of the chocolate melts. Using a paint brush, paint the chocolate onto the bark that you have placed on the cake. This helps it to look like wood.
Let the chocolate dry. If necessary, you can go over the bark a second time with another layer of chocolate.
If you haven’t done so already, add back any larger sprinkles. If the frosting starts to harden or crust over and the sprinkles don’t stick, add a tiny bit of frosting to one side of the sprinkle and place on the cake so they stay.
Optional, but adds a really nice fall touch is to brush on cocoa powder and edible gold luster dust in the highlights and lowlights of the chocolate bark.
That’s it! A simple and fun fall themed fault line cake perfect for your next Autumn dinner party or Thanksgiving holiday.