I’m sneaky. I never miss a chance to encourage Harry to eat new foods, but I don’t want him to notice. So at least one night of Hanukkah and maybe again at Christmas, he’ll get a gift that’s subtly food-related. This year it’s The Unofficial Harry Potter Cookbook—even if we never wind up baking Cauldron Cakes, he’ll read it in bed as if it were a real-deal HP book. He’ll dream about food, and someday, someday… Ahem. If you’ve been blessed with a kid who says, “No thank y...