How to Make It
In a large saucepan, combine the apple cider, brown sugar, cloves, 10 cinnamon sticks, allspice, cardamom and nutmeg and bring to a boil. Reduce the heat to low and simmer for 30 minutes. Let cool, then strain the mulled cider into a jar, cover and refrigerate until chilled, or up to 1 week.
Pour the filtered water into a wide, shallow plastic container and freeze for at least 6 hours.
Pour the mulled cider into a punch bowl and add the ice block. Stir in the sparkling pear and apple ciders, garnish with the apple and pear slices, cinnamon sticks and freshly grated nutmeg and serve in coupes or teacups.