As far as holiday traditions go, it’s hard to beat the Yule log for stirring up those feelings of coziness and warmth that come in handy this time of year. Just grab a Bunyanesque chunk of lumber, set it on fire, and bask in its warming glow for the better part of the day while carols play, chestnuts are roasted, and Jack Frost is prohibited from nipping at your nose or any other body part. Yes, the Yule log is just about the perfect holiday tradition—unless you don’t have a fireplace. Or you’re a civic-...