Line a 9" square springform baking tin with baking paper.
Break the biscuits into small bite size pieces and add to a large mixing bowl with the marshmallows and dried cranberries.
In a large saucepan melt the dairy free chocolate, butter and golden syrup on a low heat until combined.
Pour the chocolate mixture over the dry mixture and mix well until everything is coated in the chocolate.
Transfer the mixture to the lined baking tin and press down so that it is firmly in place.
Place in the fridge to set (for at least 3 hours). Optional: Melt extra dairy free chocolate to pour on top of the rocky road and place back in the fridge to set.
Cut into squares and enjoy!