Feuerzangenbowle recipe?

I am throwing a Feuerzangenbowle (Fire Pliers Punch) mixer before our company Christmas party on Friday. Assuming that most Americans have never heard about this fine holiday beverage, I am reaching out to my German readers. Do you have a good recipe for Feuerzangenbowle that is bound to impress my American friends? Your comment or email would be greatly appreciated. Danke.