Melt the chocolate according to package directions. You can use a microwave or a double boiler.
Pour the melted chocolate onto the prepared baking sheet.
Spread the chocolate into an even layer using a spatula.
Immediately sprinkle your chosen Halloween candies over the melted chocolate.
Let the chocolate bark set completely at room temperature or in the refrigerator for about 15-20 minutes.
Once firm, break the bark into pieces.
Notes
For a swirl effect, melt two types of chocolate and pour them onto the baking sheet side-by-side, then swirl them together with a toothpick before adding toppings.
Ensure your bowl and utensils are completely dry when melting chocolate to prevent seizing.
Store chocolate bark in an airtight container at cool room temperature or in the refrigerator to prevent melting.