In 1901, in the Boston Cooking School Magazine, was a recipe from Julia Davis Chandler. She started with 3 thin slices of bread, freshly made Peanut paste and currant or crab-apple jelly. In the 1920’s when the manufacturer added sugar to the mix of peanut butter, (this made children like it better) and made it easier to get for all the PB & J sandwiches came into their own.  During the Great Depression, this sandwich was a significant help to people with good protein and inexpensive. While trying to find out which Jelly is most used in the Peanut Butter and Jelly Sandwich, it is a toss-up. Strawberry is the new flavor of those who love the Sandwich. Where Grape Jelly is from old school and still has a good following! Others go for Hot with Pepper Jelly or some other fruit. Some, not even Jelly, Honey, Bananas. Celery. 

FBF Peanut Butter and Jelly Mismatch Socks start with the Peanut Butter Sock. It is Original Blurple, in the Toes and Heel as well as the Cuff. The Blurple with the straight vertical lines of Oxford Blue is the Top of the Peanut Butter Jar. Oxford Blue for words, that say, "Peanut Butter".  Brown Sugar and Camel are the colors of the Peanut Butter in the Jar. The Strawberry Jelly Sock is Scarlet at the Top, The White with Scarlet Lines is the Top of the Strawberry Jelly Jar. Blood Red and Scarlet are the colors in the Jar. The Strawberry is the Color Strawberry with the Word, "Strawberry". The Stem is Hooker's Green. The word, "Jelly" is Blood Red. Both Socks have White. These are Mismatch Socks in the Theme of Food, Thin Style and One Size Fits Most.