Where does treacle sponge come from?

Treacle sponge, a classic British dessert, originates from the United Kingdom. It is traditionally made with a sponge cake base and is infused with treacle, a thick syrup made from sugar. The dish is often served warm with custard, making it a comforting and nostalgic treat. Its roots can be traced back to the 19th century, reflecting the British penchant for rich, sweet puddings.