med. onions
Medium onions are low in calories (approximately 40 per 100g) and provide fiber, vitamin C, and quercetin, a flavonoid with potential antioxidant properties. They contain prebiotic compounds that support digestive health.
About
The onion (Allium cepa) is a bulbous vegetable belonging to the Amaryllidaceae family, native to central Asia and cultivated worldwide for millennia. Medium onions typically range from 2.5–3.5 inches in diameter and weigh approximately 4–6 ounces. The bulb consists of concentric layers of leaf bases that store carbohydrates and sulfurous compounds, which break down during cooking to release sweetness and umami depth. Common varieties for medium sizes include yellow (Golden, Texas 1015), red (Red Burgundy), and white (Bermuda) onions. The flavor profile ranges from sharp and pungent when raw to mellow and caramelized when cooked, driven by volatile sulfur compounds and natural sugars.
Culinary Uses
Medium onions serve as a foundational aromatic across nearly all global cuisines, providing the flavor base for stocks, soups, braises, and sautés. They are essential to the French mirepoix, sofrito, and holy trinity of Cajun cooking, and appear in countless Asian, Middle Eastern, and Latin American preparations. Raw, sliced onions add pungency to salads and sandwiches; caramelized onions develop deep sweetness for gratins and French onion soup; grilled or roasted onions become tender and mild. Their versatility extends from pickling to jamming, and they pair well with garlic, herbs, tomatoes, and vinegar.