Red onion is a variety of onion (Allium cepa) characterized by its vibrant purple-red skin and milder flavor compared to yellow or white onions. It is commonly used in a variety of dishes for both its color and taste, offering a pungent yet slightly sweet flavor profile when raw, which can mellow when cooked. Understanding how to cook red onion enhances its culinary versatility, making it suitable for salads, salsas, and various cooked dishes.
In terms of culinary uses, red onion is popular in raw applications such as salads, sandwiches, and garnishes, while it can also be caramelized or grilled to bring out its sweetness. There are several types of red onion, including small, mild varieties often called 'sweet red onions' and larger, sharper varieties that can add depth to cooked dishes.
Red onion nutrition includes a good source of vitamins C and B6, as well as manganese and fiber. Its relatively low calorie content makes it a favorable addition to many diets. Cooking does not significantly alter the nutritional profile, although the method of cooking can affect flavor and texture.
When storing red onions, keep them in a cool, dark, and well-ventilated area. They can also be stored in the refrigerator for a longer shelf life. To prepare red onions for use, peel away the outer layers and trim the ends, considering soaking sliced onions in cold water to reduce pungency for raw applications.
| Energy | |
| Calories 44kcal | 2% |
| Protein | |
| Protein 0.94g | 1% |
| Carbohydrates | |
| Carbohydrates 10g | 3% |
| Fiber 2.20g | 6% |
| Sugar 6g | 6% |
| Fat | |
| Fat 0.10g | 0% |
| Saturated 0.04g | 0% |
| Cholesterol 0.00mg | - |
| Vitamins | |
| Vitamin A 0.00ug | 0% |
| Choline 6mg | 1% |
| Vitamin B1 0.05mg | 4% |
| Vitamin B2 0.03mg | 2% |
| Vitamin B3 0.12mg | 1% |
| Vitamin B6 0.12mg | 7% |
| Vitamin B9 20ug | 5% |
| Vitamin B12 0.00ug | 0% |
| Vitamin C 8mg | 9% |
| Vitamin E 0.02mg | 0% |
| Vitamin K 0.40ug | 0% |
| Minerals | |
| Calcium, Ca 16mg | 1% |
| Copper, Cu 0.06mg | 6% |
| Iron, Fe 0.24mg | 2% |
| Magnesium, Mg 11mg | 3% |
| Phosphorus, P 40mg | 3% |
| Potassium, K 200mg | 6% |
| Selenium, Se 0.50ug | 1% |
| Sodium, Na 1.00mg | 0% |
| Zinc, Zn 0.17mg | 2% |
| Water | |
| Water 90g | - |
| * Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. | |
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