Balsamic Onions, Loose These Puglian Borettane onions are preserved in Balsamico di Modena (Balsamic Vinegar) for a wonderful blend of sweetness and acidity. Borettane pearl onions are flat in shape and have a mild and sweet flavour. Once they have been harvested, they are washed, peeled and blanched, before being stored in Balsamic Vinegar to soften the texture and impart flavour. Ingredients: Borettane Onions (Sulphites), Sugar, Balsamic Vinegar of Modena IGP (Wine Vinegar (Sulphites), Cooked Grape Must, Colour: E150d), Salt.