Melt the chocolate, butter and golden syrup together in a saucepan over low heat then set aside.
Crush the digestive biscuits into medium-sized chunks then add them to a large bowl along with the mini marshmallows, pistachios and cranberries. Mix to combine.
Pour the chocolate mixture into the bowl and mix well until everything is evenly coated. Transfer the mixture to your lined tin and press it down firmly into place.
Refrigerate your rocky road for 3 hours then cut into squares and enjoy!
Video
Notes
Store in an airtight container in the fridge for up to 2 weeks.