Onion

An onion is a bulbous vegetable known for its strong flavor and aroma, commonly used in various cuisines worldwide. It belongs to the Allium genus, which also includes garlic, leeks, and shallots. Onions are available in different types, including yellow, red, and white, each offering unique flavors and culinary applications.

Culinary uses of onions range from raw applications in salads and salsas to caramelizing for depth of flavor in soups, stews, and sauces. They can be sautéed, roasted, grilled, or pickled, making them a versatile ingredient for many dishes. Understanding how to cook onion properly enhances their natural sweetness and reduces their sharpness, allowing for a more balanced flavor in recipes.

Regarding onion nutrition, onions are low in calories and a source of vitamins C and B6, along with dietary fiber. They contain various antioxidants that contribute to overall health. Onions also provide a modest amount of minerals such as manganese and potassium.

When storing onions, it is best to keep them in a cool, dark, and dry location to avoid sprouting and spoilage. Avoid refrigerating whole onions, as this can affect their texture and flavor. Properly stored, onions can last for several weeks to months, depending on the type.

Onion nutrition per 100g

Energy
Calories 40kcal 2%
Protein
Protein 0.83g 1%
Carbohydrates
Carbohydrates 9g 2%
Fiber 1.90g 5%
Sugar 6g 6%
Fat
Fat 0.05g 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 0.04mg 4%
Iron, Fe 0.28mg 3%
Magnesium, Mg 9mg 2%
Phosphorus, P 33mg 3%
Potassium, K 180mg 5%
Selenium, Se 0.00ug 0%
Sodium, Na 1.00mg 0%
Zinc, Zn 0.20mg 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.

Onion recipes

Thyme and garlic roasted vegetables

Flavorful thyme and garlic roasted vegetables, perfect for any meal.

21 Apr 2026

Slow-roasted garlic chicken and vegetables

Enjoy tender slow-roasted garlic chicken with vegetables.

21 Apr 2026

Keto meatballs

Enjoy flavorful keto meatballs with creamy sauce and veggies.

21 Apr 2026

Steaks with ratatouille

Juicy steaks served with vibrant ratatouille of mixed vegetables.

21 Apr 2026

Tortilla

A classic Spanish omelette with potatoes and onion.

21 Apr 2026

Radishes with tarragon beurre blanc

Crisp radishes paired with rich tarragon beurre blanc.

21 Apr 2026

Spring pasta

A vibrant pasta dish with asparagus, peas, and lemon.

21 Apr 2026

Apple, celery and walnut salad

A refreshing Apple, Celery, and Walnut Salad with a tangy dressing.

21 Apr 2026

Mexican omelette

Enjoy a vibrant Mexican omelette with cheese and veggies.

23 Apr 2026

Spinach dip with roast carrot batons

Creamy spinach dip paired with roasted carrot batons.

21 Apr 2026

Slow cooker beef paleo pot

A flavorful Slow Cooker Beef Paleo Pot with tender vegetables.

21 Apr 2026

Greek zucchini and rice tart

A savory Greek zucchini tart with rice, spinach, and feta.

21 Apr 2026

Vegan peanut and sweet potato stew

A comforting vegan sweet potato and peanut stew packed with flavor.

21 Apr 2026

Grilled corn and tomato salad with basil and lime

A refreshing grilled corn and tomato salad with basil and lime.

21 Apr 2026

Individual salmon pies

Creamy individual salmon pies topped with mashed potatoes.

21 Apr 2026

Potato, capsicum & eggplant frittata

A hearty Potato, Capsicum, and Eggplant Frittata for any meal.

21 Apr 2026

Chicken bacon carbonara with whole-wheat pasta

Creamy Chicken Bacon Carbonara with whole-wheat pasta.

21 Apr 2026

Sweet and sour pineapple chicken

Sweet and sour pineapple chicken: a quick, flavourful dish.

21 Apr 2026

Spicy potato wedges with sour cream

Crispy spicy potato wedges served with sour cream.

21 Apr 2026

Mushroom, onion and egg white omelet

A light and protein-packed Mushroom, Onion, and Egg White Omelet.

21 Apr 2026

Hash browns

Crispy hash browns made with potatoes, onions, and chives.

21 Apr 2026

Balsamic mustard potatoes with onion

Tangy balsamic mustard potatoes with roasted onion.

21 Apr 2026

Soy and garlic chicken with rice

Soy and garlic chicken served with fragrant basmati rice.

21 Apr 2026

Cottage pie

Classic cottage pie with beef and creamy mashed potatoes.

21 Apr 2026

Portobello mushroom stroganoff with egg noodles

Creamy Portobello mushroom stroganoff served with egg noodles.

21 Apr 2026

Ginger and pineapple fried rice

A vibrant ginger and pineapple fried rice with mixed vegetables.

21 Apr 2026

Spinach and pepper egg cups

Make healthy spinach and pepper egg cups for a quick breakfast.

21 Apr 2026

Gluten-free cheese and spinach triangles

Make savory gluten-free cheese and spinach triangles easily!

21 Apr 2026

Mexican pork and capsicum stew

A hearty Mexican pork and capsicum stew served over rice.

21 Apr 2026

Zucchini, carrot and honey muffins

Delicious zucchini, carrot, and honey muffins for breakfast or snacks.

21 Apr 2026

Spiced chickpea and olive salad

A hearty spiced chickpea and olive salad with roasted pumpkin.

21 Apr 2026

Tomato and onion sambal

A fresh tomato and onion sambal to spice up any meal.

21 Apr 2026

Samurai chicken stir-fry

Quick and vibrant Samurai Chicken Stir-Fry ready in minutes.

21 Apr 2026

Fresh quinoa tabbouleh with feta and herbs

A refreshing quinoa tabbouleh salad with feta and herbs.

21 Apr 2026

Curried cabbage and carrot slaw

A refreshing curried cabbage and carrot slaw with yogurt dressing.

21 Apr 2026

Cucumber and shrimp salad

A refreshing cucumber and shrimp salad with zesty lime dressing.

21 Apr 2026

Chicken and chorizo paella

A flavorful Chicken and Chorizo Paella that's perfect for sharing.

21 Apr 2026

Welsh onion cake

Traditional Welsh onion cake with potatoes, leeks, and cheese.

21 Apr 2026

Curry tuna salad

A creamy and flavorful curry tuna salad perfect for sandwiches or salads.

21 Apr 2026

Mushroom and spinach risotto

Creamy mushroom and spinach risotto that's rich and comforting.

21 Apr 2026