Ingredients

Dark or milk chocolate 

Preparation

Freeze a large marble slab overnight.

Melt chocolate in a heatproof bowl set over a pot of simmering water.

Ladle a small amount of melted chocolate onto the frozen marble. Working quickly, use an offset spatula to spread the chocolate across the marble into one thin layer. Once smooth, use a knife to cut the chocolate to the desired width. Using the offset spatula, peel the chocolate strip from the marble. The chocolate may then be wrapped around the perimeter of a cake as a decorative element.