What delicious sandwich is made with just 3 ingredients?

Who thought of putting peanut butter & jelly together? How did PB&J become one of the most popular sandwiches? Is PB&J healthy for you? For free home activities sign-up at www.WhoSmarted.com See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info .