Onion is a popular root vegetable that is cultivated in many countries around the world. It is known for its spicy and slightly sweet flavor, and for its crunchy and juicy texture. The onion is rich in nutrients, in particular in vitamins C and B6, potassium and sulfur. It is also a source of dietary fiber and flavonoids, which have antioxidant properties. The onion goes well with many ingredients, especially meats, fish, vegetables and cheeses. It can be used in salad, soup, marinade, vinaigrette or condiment. It is often used in meat, soups and sauces dishes, and it is also popular in pastry recipes, such as pies and quiches.