Heat apple cider with spices and orange and simmer for at least 10 minutes.
Allow apple cider to cool.
Remove spices/orange and refrigerate cider until ready to use.
Pour chilled cider into champagne flute, filling half way.
Top with sparkling wine.
Optional, top with burnt orange segments (slice oranges and top with honey drizzle and sprinkling of icing sugar and allspice. Bake at 350 for approx 25 min or until oranges begin to caramelize.)
Recipe by Sugar Plum Sisters at https://sugarplumsisters.com/2019/10/apple-cider-mimosa/