Line a baking sheet with parchment paper
Chop chocolate into small pieces if using a chocolate bar
Melt the chocolate in a microwave-safe bowl or over a double boiler
Stir until smooth
Pour the melted chocolate onto the prepared baking sheet
Spread it into an even layer
Add toppings such as nuts, dried fruit, sprinkles, or crushed cookies
Gently press toppings into the chocolate
Let the bark cool at room temperature or refrigerate until firm
Break into pieces
Store in an airtight container