Currant Catsup

Currants are naturally high in pectin and acid, which work together to create the thick, gel-like consistency of this historic condiment when reduced. The extended boiling concentrates the fruit's natural sugars while the vinegar's acidity acts as a preservative and balances the sweetness. The combination of sugar and acid creates an inhospitable environment for bacterial growth, allowing this sauce to be safely stored without refrigeration when properly sealed—a crucial preservation technique in the early 20th century.