Thanksgivukkah. It’s been called a once-in-lifetime celebration. The unique convergence of the Jewish Festival of Lights and the American Festival of Thanks and Turkey Gorging. It’s been more than 100 years since Thanksgiving and Hanukkah last coincided, a rarity that is being celebrated by Jews in America with special treats like sweet-potato latkes and challah stuffing. At least one New York bakery is selling...