- Line baking sheet with parchment paper. 
- Melt the chocolate according to the packaging using the stovetop or microwave method. 
- Pour the melted chocolate over the decorative mats. 
- Spread the chocolate in a 1/4-inch even layer. 
- Evenly sprinkle the decoration of your choice (sprinkles, chocolate chips, mints, rock candy) over the chocolate edge to edge. 
- Place the baking sheet in the freezer for 10 minutes until firm. 
- Allow the bark to come to room temperature before serving. 
- You may need more melted chocolate depending on the size of your decorative mat.