By Fiona Cairns
These friendly robots will delight any young child, both to help create and as a birthday party centrepiece. Make several batches and assemble an army!
Butter a 23 cm square loose-bottomed cake tin, and line the base with baking parchment. Tip the rice cereal into a large mixing bowl.
Melt the Mars Bars, chocolate, butter and syrup in a bowl over gently simmering water, making sure the bowl does not touch the water and stirring from time t