Jubilee biscuit cake
By Paul A Young From Saturday Kitchen Ingredients For the dark chocolate layer 100g/3½oz unsalted butter, softened 50g/1¾oz unrefined caster sugar 50g/1¾oz golden syrup 25ml/¾fl oz warm water ½ tsp sea salt 125g/4½oz dark chocolate, in pieces 60g/2¼oz tea biscuits (such as Rich …