National Peanut Butter and Jelly Day is celebrated annually on April 2nd. This food holiday is a classic favorite of many. The average American will have eaten over 2000 peanut butter and jelly sandwiches by the time they graduate from high school. It is thought to be that the first reference of peanut butter paired with jelly on bread, was published in the United States in 1901. Peanut butter was considered a delicacy in the early 1900's, and was only served in New York City’s finest tea rooms. In the late 1920's, the price of peanut butter declined, and the sandwich became very popular...