Posted by Darren Abbey, PhD at 704 PM


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Finally, Onion blue colour or purple colour when they are cooked is due to the Maillard reaction, which is a chemical reaction that occurs between amino acids and sugars when food is heated. This reaction can produce a range of colors, including blue and purple, depending on the specific amino acids and sugars present in the food.


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Nothing will happen if you eat onions that turned blue. These onions aren't spoiled but they are only discolored because they got into contact with alkaline elements (foods) that we talked about above. So, yes, it's completely safe to eat onions that turned blue but if the change of color bothers you, you can reverse their color by using.


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A blue onion is a type of onion with a bluish-purple skin and a white flesh on the inside. It is often used in cooking to add flavor to dishes, and is known for its slightly milder taste compared to other types of onions. Blue onions are commonly used in recipes for soups, stews, and salads, and are also popular for pickling.


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Cross sections of red onions. Red onions (also known as purple or blue onions in some mainland European countries) are cultivars of the onion (Allium cepa), 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.. Red onions tend to be medium to large in size and have a sweeter flavor than white or yellow.


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Seasons, colors, flavors, and sizes of onions vary! Based on when they are harvested, onions grown in the U.S.can be divided into two categories. Read more.. Onion Color, Flavor, Usage Guide. This chart was created to serve as a guide for helping you choose what kind of onion to use in a recipe. Feel free to let your own tastes, preferences.


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2. Keep "storage" onions in the dark. Different types of onions can be categorized as "storage" bulbs or "spring" bulbs. Storage onions are round and thin-skinned, such as Spanish, white, and.


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Maui Onion. As the name suggests, this onion comes from Maui where they originated on the slopes of the Mount Haleakala volcano. They only grow in volcanic soil, so they remain rather a local treat. Maui onions are very sweet and juicy, and do not make you cry when you cut them due to their lack of sulfuric acid.


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White Onions. Red Onions. Shallots. Green Onions. Leeks. Back to Top. The humble onion is as indispensable to the culinary arts as butter or eggs—or for that matter, knives or plates. It's the rare food that can be sweet, savory, pungent and aromatic all at the same time, but that's what onions do. In a real sense, onions are what make food.


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Onions have a range of flavors, colors, and sizes. Seasonal differences like flavor and texture are noticeable, especially right now! Sweet, mild, or spicy, and yellow, red, or white, and from super colossal to pearl - onion grown in the U.S. are available year-round. March is the time of year when these differences are most […]


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The obvious draw to a red onion is its color, with a deep red hue that provides a nice contrast. In some cases, though, they may discolor and turn light ingredients, like eggs, potatoes, and beans.


Posted by Darren Abbey, PhD at 704 PM

The onion has been grown and selectively bred in cultivation for at least 7,000 years. It is a biennial plant but is usually grown as an annual. Modern varieties typically grow to a height of 15 to 45 cm (6 to 18 in). The leaves are yellowish- to bluish green and grow alternately in a flattened, fan-shaped swathe.


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1. Neutral Colours that Match with Onion Purple/ Pink. Onion Pink and Black. Onion colour and White. Onion colour and Silver. Onion and Grey. Onion Purple and Ash. Onion Pink/ Purple and Charcoal. Onion and Ivory.


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Chefs & Educators. News. About NOA. Tips, Onion Myths & FAQs. Contact. The National Onion Association offers a guide to picking the right onions, and right flavors, that will complement your meals. More at www.onions-usa.org.


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Onions are different colors because of their natural pigments, and each onion variety has more or less pigment. For example red onions and shallots appear purplish-red because they are high in anthocyanin. Yellow onions have a very small amount of beta-carotene, while white onions have the least amount of pigment.


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Here's a simple guide to picking the right variety for every dish. Alliums (onions, garlic, leeks, scallions, ramps) are a staple in every home cook's kitchen. Whether they're tucked into a quiche or caramelized and folded into mac and cheese, different types of onions can add immense flavor to any dish. Choosing the right one for whatever.


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Globe: yellow, white, or red: stronger flavor. Pearl: marble-size; white; mild. Maui, Vidalia, and Walla Walla: pale yellow or white; sweet and mild flavor. Green Onions or Scallions: immature onions with white bottoms and green tops; mild flavor. Most onions are available fresh year-round. However, some varieties of sweet onion are more seasonal.