Christmas syllabub Serves: 6 Ingredients 75g sultanas 4 tbsp medium sherry 4 tbsp brandy 75g dark Muscovado sugar 1 lemon, finely grated zest and juice 1 orange, finely grated zest and juice 1 tsp ground ginger 1 heaped tsp ground cinnamon 570ml chilled double cream 2 pieces stem ginger (from a jar), diced 1 pomegranate,