I used this recipe. The recipe in zymurgy is tuned for 3 gallons.
5 gallons water.
18 lbs turbinado (raw cane sugar)
8 cinnamon sticks
170 degrees for 10 minutes
Lalvin EC-1118
After primary fermentation add 4 cinnamon sticks, 20 whole cloves, 20 allspice berries, 1 1/2 tsp nutmeg, 6 vanilla...