Chocolate-covered raisin
Chocolate-covered raisins are a popular bulk vending product. They consist, as the name suggests, of raisins coated in a shell of milk, dark or white chocolate. They have a reputation in many countries of being food eaten in movie theaters, and are an item familiar from the concession counter. The supermarket chains also sell them in bags and they were traditionally sold by weight from jars in candy stores.
The historical origins of the chocolate covered raisin are unknown. However, most early references tend to originate from the Germanic-speaking regions of Europe. A popular folk tale mentions "kleine Schokokugeln" (little chocolate balls). Schokokugeln are a popular form of candy treat found widely in modern Germany. A traditional Germanic children's Christmas prayer also contains "...Meine kleine Schokokugeln, oh, wie edel man die Früchte hängen nach unten zu verherrlichen. Mein Weinberg weint mit guter Laune an diesem Geschenk des Himmels" (...my little chocolate balls, oh, how nobly you glorify the fruit hanging down. My vineyard weeps with good cheer at this gift from heaven..).
It is also likely that a precursor form of this food existed in Mesoamerican cultures, given the known consumption of cacao based foods within these ancient societies e.g. a chocolate coated nut, or berry.