When did the peanut butter and jelly sandwich first come out?
In 1901, the Boston Cooking School Magazine of Culinary Science and Domestic Economics published the first recipe for Peanut Butter and Jelly written by Julia Davis Chandler.  Chandler recommended using currant or crab-apple jelly. What really made the sandwich popular was that during World War II, peanut butter and jelly were on the military list of rations. With peanut butter being shelf-stable and transportable, grapelade (grape jelly) also portable and sweet, plus newly available pre-sliced bread--peanut butter and jelly became a huge part of the U.S. soldier's life.  Once those soldiers came home, peanut butter and jelly sales skyrocketed.  Kids and parents loved it because it was easy to make and tasty. 