Line a large baking tray with greaseproof paper.
Chop up the white chocolate into small chunks and place in a microwave-safe bowl. Microwave in 20-second blasts (stirring after each) until melted and smooth.
Drop teaspoons of melted white chocolate onto the baking tray, and use a pastry brush or the back of a spoon to smear the white chocolate downwards. This will create a ghost shape.
Place a cocktail stick into the bottom half of each ghost, and roll it in the white chocolate to conceal the stick.
Leave to dry for 20 minutes, then draw on two dots for the eyes and an oval for the ghost mouth using the chocolate writing icing.
Place in the fridge for 20-30 minutes until the chocolate is hard and set.
Carefully peel the ghosts of the baking paper and use them to decorate your spooky bakes.