Instructions

1. In a saucepan melt the butter, chocolate and golden syrup together. Once melted keep to one side to cool slightly.
2. Smash up the biscuits so they are small chunks. Then mix the biscuit and marshmallow through the chocolate mixture.
3. Spread out on lined square baking tray and leave in the fridge for 1 hour.
4. Remove and cut into to small squares and dust with icing sugar.