01 - In a large saucepan, combine apple cider, orange slices, lemon slices (if using), whole cloves, cinnamon sticks, star anise pods, allspice berries, sliced ginger, honey or maple syrup, and grated nutmeg.
02 - Gently warm the mixture over medium heat until steaming but not boiling. Allow to simmer for 15–20 minutes, stirring occasionally to ensure even distribution of flavors.
03 - Reduce the heat to low and let the mixture steep for an additional 5–10 minutes. Taste and adjust the sweetness as per your preference.
04 - Remove the saucepan from the heat. Carefully strain the liquid through a fine-mesh sieve to remove all spices and fruit pieces, reserving the infused cider.
05 - Stir the chosen spirit (dark rum, bourbon, or apple brandy) into the strained cider. Adjust the quantity to achieve the desired potency.
06 - Ladle the hot mulled cider into mugs or heatproof glasses. Garnish with additional fresh orange slices and cinnamon sticks before serving.