* 2 onions
Onions are low in calories and rich in vitamin C, quercetin (an antioxidant), and prebiotic fiber, particularly when raw or lightly cooked. They contain beneficial sulfur compounds with potential anti-inflammatory properties.
About
The onion (Allium cepa) is a bulbous herbaceous plant belonging to the amaryllis family, native to Central Asia and cultivated worldwide since ancient times. The bulb consists of modified leaves layered concentrically around a central disk, with papery outer skin in colors ranging from white, yellow, or red depending on variety. Onions possess a pungent, sulfurous aroma and sharp flavor when raw, which mellows to sweet and caramelized when cooked. Major cultivars include yellow onions (the most versatile), white onions (milder), red onions (sweet with purple flesh), and Vidalia onions (notably sweet). The flavor compounds—primarily disulfides and thiols—develop when cell walls are broken during cutting, causing irritation and tears.
Culinary Uses
Onions serve as a foundational aromatic in cuisines worldwide, functioning as the flavor base for stocks, soups, stews, sauces, and virtually all savory cuisines. They are used raw in salads and salsas, caramelized for depth, grilled or roasted for sweetness, or pickled for acidity and crunch. French mirepoix, Italian soffritto, Spanish sofrito, and countless other culinary traditions rely on onions as an essential building block. They pair universally with garlic, bell peppers, tomatoes, and meats, and are equally at home in vegetable-forward or meat-based dishes.