tbl onion
Onions are low in calories and rich in vitamin C, fiber, and antioxidants including quercetin; they also contain prebiotic compounds that support digestive health.
About
The onion (Allium cepa) is a bulbous herbaceous plant native to Central Asia, belonging to the family Amaryllidaceae. The edible bulb consists of concentric layers of leaf bases that store nutrients, covered by a papery brown, yellow, red, or white skin depending on variety. Onions exhibit a sharp, pungent flavor when raw due to volatile sulfur compounds, which mellow and sweeten considerably when cooked through caramelization and breakdown of sulfur-based compounds. Major cultivars include yellow onions (most common, mild when cooked), red onions (sweeter, with purple-red pigmentation), white onions (delicate, preferred in Latin American cuisines), and specialty varieties such as Vidalia, Maui, and Egyptian walking onions.
Culinary Uses
Onions are fundamental aromatics in world cuisine, serving as a base for stocks, soups, sauces, and braises across European, Asian, African, and American culinary traditions. They are used raw in salads, salsas, and pickled preparations; caramelized as an accompaniment or component in French onion soup and gratins; grilled or roasted as a side dish; and incorporated into curries, stews, and grain dishes. Onions add depth, sweetness, and umami to dishes when cooked slowly, while raw onions provide sharp, crisp bite. They pair well with garlic, herbs, vinegar, and virtually all savory ingredients.