Today, the red onion is one of the many essential ingredients in all cuisines. Allium Cepa is the scientific designation for red onion. The epidermis of red onions is a mixture of purple and red in colour. This onion epidermis, which is not consumed when the onion is cooked, is utilised as a fabric dye by manufacturers. The red onion contains a potent chemical agent that can irritate your tear ducts, unlike its yellow and white relatives.
Although not a direct relative, the red onion is more similar to shallots. It is the essential ingredient that imparts heat to any dish. As both onions and shallots have a sweet and spicy flavour, they can be utilised indiscriminately in salads, albeit to varying degrees.