Slow cooker mulled cider

Name: Slow cooker mulled cider
Prep time: 5 min
Cook time: 1 h
Total time: 1 h 5 min
Cuisine: British, European
Ingredients: 1.5 litres dry cider; 500ml apple juice; 75g light brown soft sugar; 1 orange sliced; 1⁄2 lemon zest pared into strips; 5 cloves; 10 allspice berries; 3 cardamom pods bruised using a rolling pin; 2 bay leaves; 2 cinnamon sticks; 100ml calvados apple or regular brandy