red onion – finely chopped

Red onion (Allium cepa var. atropurpureum) is a cultivar of the common bulb onion characterized by deep purple-red skin and red-tinged white to purple flesh. Native to Central Asia and refined through centuries of cultivation across Europe, these onions contain anthocyanin pigments responsible for their distinctive coloring. Red onions have a sweeter, milder profile than yellow or white varieties, with a pleasant pungency that mellows when cooked. The flavor intensity varies with size and age; smaller bulbs tend to be sweeter, while larger specimens develop more assertive characteristics.

Red onions are used globally in raw applications where their appearance and milder sweetness provide aesthetic and flavor benefits. They are essential in Latin American ceviches, Mediterranean salads, and Indian salsas. When finely chopped, they serve as a raw garnish for tacos, grain bowls, and cured preparations, where their crisp texture and slight sweetness complement acidic or rich elements. They are also grilled, roasted, or caramelized for cooked applications. Slicing and pickling red onions in vinegar is a traditional preparation that intensifies their color and adds tangy brightness to dishes.