For those who like to spike their eggnog, I’ve been experimenting for years with different spirits for that task.
Bourbon is my usual go-to. I’ve had good results with flavored whiskeys, usually honey, cherry, vanilla, or praline. If you can find a good root tea*, that’s a good option as well. Amaretto is a solid option, and coffee liqueurs are excellent as well.
But the best of all are ginger-flavored spirits. I used to get Art in the Age’s SNAP, which tasted like a good ginger snap cookie. Mixed with eggnog, it was like Liquid Christmas!** Alas, SNAP is no longer available near me (if at all), so I have had to find substitutes. The cheaper, more easily found one is Captain Morgan’s ginger rum. Its flavor is not nearly as good as AitA’s product was, though. The best substitute I’ve found is The King’s Ginger. It’s pricier than either the CM or AitA products, but the flavor is perfect for this mix.
* I used to buy Art in the Age’s ROOT, but either its no longer for sale in Texas or production has ceased altogether.
** might be a good name for that specific combination!