Add 300g of chocolate, butter and syrup in a bowl covered with cling film and melt in the microwave for 2 minutes.

Crush the ginger biscuits so they are mostly crumbs and chop up the Gingerbread Protein bar into little pieces. 

Add the gingerbread pieces to the bowl of melted chocolate along with the mini marshmallows and stir together. 

Press into a lined tin/tray and melt the remaining chocolate to pour on the top.

Top with extra decorations and then refrigerate for at least 3 hours. Once set, cut up and share!