What’s Really In Eggnog Anyway?

You love eggnog. I love eggnog. We all love eggnog. A holiday party just can't live up to its full potential if it doesn't have a boozy rendition of the staple beverage. But, we have just one question this year. What in Scrooge's name is eggnog? We're all downing this creamy, flecked drink and haven't a clue. So, we asked 29 R29ers to disclose what's really in the mystery treat. We think the guy with the volcano theory got pretty close. You be the judge.