Halve the Mars Bars and put into a microwaveable bowl with the reduced fat spread. Microwave in short bursts until melted.
Fold the Coco Pops into the chocolate mixture, ensuring that they are all fully coated.
Onto a tray place 30 small heaps of the mixture. Place in the fridge for around 15 minutes until it has firmed up. Shape into balls.
Melt the white chocolate and drizzle a little over each ball. Decorate with sugar balls and herb leaves, or some ready made edible holly decorations to make them look like Christmas Puddings!