To make for a crowd simply double the recipe to 1 gallon apple cider, 3-4 clementines, 1 large or 2 apples, 2 teaspoons whole cloves, 1 teaspoon ground allspice and 6-7 cinnamon sticks.
Find it online: https://www.motherthyme.com/2017/11/hot-spiced-apple-cider.html