My roommate, Cristen, makes it every year to give away as gifts.
3 gallons apple cider
1 cup sugar (She actually recommends less, but this was what the original recipe called for. You could easily halve this)
1 fifth Everclear (Trashy, we know)
12 sticks cinnamon
The amount of Everclear and cinnamon depends on taste. I think adding a few peeled pieces of fresh ginger would taste fantastic.
Directions: Combine apple cider, sugar, Everclear and cinnamon sticks in a very large stockpot over low heat for about three hours. Don't let it boil! You wouldn't want to lose any of that 77 proof alcohol content or anything. Remove cinnamon sticks and strain to remove large chunks left from cinnamon. Divide into bottles and add festive tags to give as gifts.
Cristen found some nice clear bottles with a resealable cap at IKEA last year, but was also able to get some pretty blue-hued jars at a local brewery.