Since Hanukkah commemorates a small quantity of oil miraculously lasting for eight nights, the holiday is traditionally celebrated by consuming foods fried in lots of oil. Popular choices include latkes, or potato pancakes, and sufganiyot, doughnuts filled with jelly and dusted with powdered sugar. Fascinatingly, sufganiyot became associated with Hanukkah in large part due to a 1920s trade union campaign—latkes could be easily made at home, but sufganiyot were typically produced in bake...