Grate the chocolate bar.

Grease the baking pan with butter or vegetable oil.

Put a liner in a pan with parchment paper.

Heat the pan on low heat. Pour the condensed milk and add grated chocolate. Combine well until you achieve a smooth mixture.

Pour the mixture into the prepared pan. Sprinkle grated chocolate for toppings.

Refrigerate for 4-5 hours or overnight.

Sprinkle the remaining grated chocolate for additional topping.

Using a knife, cut into desired shape.