Jam sandwich

A jam sandwich is usually composed of two slices of bread with jam in the middle. It is normally consumed at lunchtime or as a snack. In Scotland, they are also known as pieces and jam, or jeely pieces. If another spread is added, particularly peanut butter, it becomes a variation of the Peanut Butter and Jelly (PB&J) sandwich. Jam sandwiches are thought to have originated around the 19th century in the United Kingdom. The jam sandwich was an affordable food. One plausible reason for this was its ingredients cost little to manufacture; and due to taxes being lifted on sugar in 1880, it became widely available as a cheap foodstuff.

Source: Wikipedia