Spoon into the prepared tin. Sprinkle over the honeycomb bar pieces and press down firmly. Drizzle with the melted dark chocolate in a zig zag pattern. Chill in the fridge for 2 hours until firm.

Use a rolling pin to break or bash up the chocolate into small pieces. Put them in a heatproof bowl and add the butter and golden syrup. Melt gently, over a pan of hot water, giving it a stir now ...