Preheat the oven to 200oC/fan 180oC/gas mark 6.
Make the Fate low protein chocolate flavour cake mix as per packet instructions and divide equally between 6 cupcake cases.
Bake in the oven for 20 mins, remove and allow to cool.
Meanwhile to make the frosting, melt 7 Vitabite bars in a heatproof bowl over a pan of boiling water, then allow to cool to room temperature.
Beat the butter in a separate bowl until soft and gradually beat in the icing sugar.
Fold the cooled melted Vitabite into the butter and icing sugar mixture until combined.
Pipe the frosting repeatedly around the edges of the cupcakes with a small round nozzle to resemble a nest.
Add jelly beans to the centre of the nests.
Cut 2 bars of Vitabite into shards and place around the jelly beans.
ProZero, Fate low protein chocolate flavour cake mix and Vitabite are foods for special medical purposes and must be used under medical supervision.