More than just a tasty culinary plant, the onion contains natural sugar, vitamins A, B6, C and E, minerals such as sodium, potassium, iron and dietry fibre. In addition, onions are a good source of folic acid.
Red onion varies in size, but has a distinctive red/purple skin, and the edge of each of its white rings is tinged with red. The flavour is mild and quite sweet. It is good for salads, marinades, salsas and roasts.