The best replacement for eggnog is rompope.

The best alternatives to eggnog are rated as following:
★★★★★  rompope
★★★★★  coquito
★★★★★  snowball
★★★★  nidhogg
★★★  boiled custard
★★★  advocaat
★★★  tom and jerry
★★  egg nog
★★  eggnog
★★  holiday nog
★  eierlikör
★  uncooked
  cooked

Your alternative for eggnog is not listed? Suggest!
Speaking about eggnog, one probably shouldn't forget about alcohol.

Other search terms related to eggnog and their ratings are:
★★★★★ alcohol
★★★★ rum
★★★ nutmeg
★★ liquor
★ southern comfort
★ baileys
★ kahlua
spiced rum
You have in mind a companion for eggnog and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of eggnog in all years. Click on graph for more.
eggnog
rompope
coquito