Megan McArdle: This one little trick will make Thanksgiving perfect

Thanksgiving comes early this year, which means there was barely time to empty the Halloween candy bowl before the barrage of advice began about the fabulous new things you can do to liven up Thanksgiving.Toss out boring potatoes in favor of mashed cauliflower! Substitute julienned bok choy for Aunt Irma’s green bean casserole! And as for the turkey — if you must have such a hackneyed entree, then at least spatchcock it, glaze the result with a sriracha-molasses reduction and festoon