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Yellow onion | |
---|---|
Genus | Allium |
Species | Allium cepa |
The yellow onion or brown onion ( Allium cepa L. [1] [2] ) is a variety of dry onion with a strong flavour. They have a greenish-white, [3] light yellow, [4] or white inside; [5] its layers of papery skin have a yellow-brown or pale golden colour. [3] [4]
It is higher in sulphur content than the white onion, which gives it a stronger, more complex flavour. [5] [6]
A dozen varieties of yellow onion are grown, following the time of year. They vary in nutritional content, but they do contain quercetin (a flavonol). [1]
Yellow onions are typically available throughout the year, [4] grown between spring and fall, and then stored for the rest of the year. [4] It is the most commonly grown onion in northern Europe, [2] and it makes up 90% of onions grown in the United States. [4] They should be stored at cool room temperature in a dark place. Longer-term storage requires them to be wrapped in paper and placed in a refrigerator. Cut or peeled onions also need to be stored in plastic in the refrigerator, but they will last only a few days. [4]
They have a rich onion taste and are fit for dishes such as French onion soup, other soups, stews and braises, sautéed dishes, and shish kebabs. [5] They can become sticky and sweet when caramelized. [4]
Chives, scientific name Allium schoenoprasum, is a species of flowering plant in the family Amaryllidaceae that produces edible leaves and flowers. Their close relatives include the common onions, garlic, shallot, leek, scallion, and Chinese onion.
The shallot is a cultivar group of the onion. Until 2010, the shallot was classified as a separate species, Allium ascalonicum. The taxon was synonymized with Allium cepa in 2010, as the difference was too small to justify a separate species.
Garlic is a species of bulbous flowering plant in the genus Allium. Its close relatives include the onion, shallot, leek, chive, Welsh onion, and Chinese onion. It is native to South Asia, Central Asia and northeastern Iran and has long been used as a seasoning worldwide, with a history of several thousand years of human consumption and use. It was known to ancient Egyptians and has been used as both a food flavoring and a traditional medicine. China produced 73% of the world's supply of garlic in 2021.
An onion, also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus Allium. The shallot is a botanical variety of the onion which was classified as a separate species until 2011. Its close relatives include garlic, scallion, leek, and chive.
Scallions are edible vegetables of various species in the genus Allium. Scallions generally have a milder taste than most onions. Their close relatives include garlic, shallots, leeks, chives, and Chinese onions.
Danish cuisine originated from the peasant population's own local produce and was enhanced by cooking techniques developed in the late 19th century and the wider availability of goods during and after the Industrial Revolution. Open sandwiches, known as smørrebrød, which in their basic form are the usual fare for lunch, can be considered a national speciality when prepared and garnished with a variety of ingredients. Hot meals are typically prepared with meat or fish. Substantial meat and fish dishes includes flæskesteg and kogt torsk with mustard sauce and trimmings. Ground meats became widespread during the industrial revolution and traditional dishes that are still popular include frikadeller, karbonader and medisterpølse. Denmark is known for its Carlsberg and Tuborg beers and for its akvavit and bitters, but amongst the Danes themselves imported wine has gained steadily in popularity since the 1960s.
Allium tuberosum is a species of plant native to the Chinese province of Shanxi, and cultivated and naturalized elsewhere in Asia and around the world.
Allium fistulosum, the Welsh onion, also commonly called bunching onion, long green onion, Japanese bunching onion, and spring onion, is a species of perennial plant, often considered to be a kind of scallion.
The tree onion is a perennial plant similar to the common onion (A. cepa), but with a cluster of bulblets where a normal onion would have flowers. Tree onions are also known as topsetting onions, walking onions, or Egyptian onions. Genomic evidence has conclusively shown that they are a diploid hybrid of the shallot and the Welsh onion (A. fistulosum). However, some sources may still treat the tree onion as A. cepa var. proliferum or A. cepa Proliferum Group.
Allium canadense, the Canada onion, Canadian garlic, wild garlic, meadow garlic and wild onion is a perennial plant native to eastern North America from Texas to Florida to New Brunswick to Montana. The species is also cultivated in other regions as an ornamental and as a garden culinary herb. The plant is also reportedly naturalized in Cuba.
The pearl onion, also known as button, baby or silverskin onion in the UK, is a close relative of the leek, and may be distinguished from common onions by having only a single storage leaf, similar to cloves of garlic. In French they are known as oignon grelot. One English-speaking reference also mentions the term petit poireau antillais.
Soup beans is a term common in the Southern United States, particularly the regions around the Appalachian Mountains. Soup beans are usually served with cornbread, greens, and potatoes and may be topped with raw chopped onions or ramps. Soup beans are considered a main course, but also serve as a side dish. In rural areas, where food was scarce during the winter, these dried beans were a staple food.
Onion powder is dehydrated, ground onion that is commonly used as a seasoning. It is a common ingredient in seasoned salt and spice mixes, such as beau monde seasoning. Some varieties are prepared using toasted onion. White, yellow and red onions may be used. Onion powder is a commercially prepared food product that has several culinary uses. Onion powder can also be homemade.
Pickled onions are a food item consisting of onions pickled in a solution of vinegar and salt, often with other preservatives and flavourings. There is a variety of small white pickled onions known as 'silverskin' onions; due to imperfections they are pickled instead of being wasted. They are frequently used as the distinguishing feature of a variation on the Martini cocktail, known as a Gibson.
Red onions are cultivars of the onion, and have purplish-red skin and white flesh tinged with red. They are most commonly used in cooking, but the skin has also been used as a dye.
White onion or Allium cepa are a cultivar of dry onion which have a distinct light and mild flavour profile. Much like red onions, they have a high sugar and low sulphur content, and thus have a relatively short shelf life. White onions are used in a variety of dishes, such as those of Mexican and European origin. Their uses in dishes often relate to their mild nature, they are often included in dishes to provide a light, fresh and sour taste to dishes and are often added uncooked to dishes such as salads.
Toona sinensis, commonly called Chinese mahogany, Chinese cedar, Chinese toon, beef and onion plant, or red toon is a species of Toona native to eastern and southeastern Asia, ranging from northern Korean peninsula through most of eastern, central, and southwestern China, in Nepal, northeastern India, Burma (Myanmar), Thailand, and even present in Malaysia and western Indonesia.
Allium is a genus of monocotyledonous flowering plants with hundreds of species, including the cultivated onion, garlic, scallion, shallot, leek, and chives. The generic name Allium is the Latin word for garlic, and the type species for the genus is Allium sativum which means "cultivated garlic".
Leek yellow stripe virus (LYSV) belongs to the genus Potyvirus. It was first detected in leek but also infects garlic and onion worldwide. Economically less important Allium spp., such as Allium angulosum, Allium caeruleum, Allium cyathophorum, Allium nutans, Allium scorodoprasum, Allium senescens subsp. montanum were also found to harbor the virus.