On a clear day at Nome City Cemetery (AK), you can watch planes take off over the Bering Sea. Within the field of white graves, you might also see a small black obelisk that shines brilliantly when it catches the sun. Getting closer, you’ll note an unmistakable symbol engraved near its base. It’s not a cross, nor a Star of David, but a sacred container of sorts in many American households: a tub of Cool Whip.The grave belongs to Bonnie Johnson, a mother, former flight attendant, and creator of a cookie recipe whose batches always arrived at birthdays, holidays, and...