Brown Onion

Brown onions (Allium cepa) are a common variety of onion, known for their papery brown skin and pungent flavour when raw, which mellows and sweetens upon cooking. They are grown globally and are a staple vegetable in many cuisines. Onions are typically harvested and then cured to allow their outer layers to dry, extending their shelf life.

Brown onions are widely used as a flavour base in savoury dishes, providing a sweet and aromatic taste when sautéed or caramelised. They are a fundamental ingredient in soups, stews, sauces, curries, and stir-fries, and are also used in processed foods like ready meals and sauces to enhance their overall flavour profile.

Brown onions are a vegetable and not a food additive, so they do not have an E-number or require authorisation on the Register of Food Additive Authorisations. They are a source of fibre, vitamins, and minerals. Some research suggests that compounds in onions may have antioxidant properties, but evidence regarding specific health benefits at typical dietary intakes is mixed and requires further investigation. The WHO/IARC classifies processed meat as carcinogenic to humans, but has not classified onions.