Cocktail onion
Encyclopedia
A cocktail onion is usually a pearl onion
Pearl onion
The "true" pearl onion is a close relative of leek , and may be distinguished from bulb onions by having only a single storage leaf, similar to cloves of garlic...

 pickled in a brine
Brine
Brine is water, saturated or nearly saturated with salt .Brine is used to preserve vegetables, fruit, fish, and meat, in a process known as brining . Brine is also commonly used to age Halloumi and Feta cheeses, or for pickling foodstuffs, as a means of preserving them...

 with small amounts of turmeric
Turmeric
Turmeric is a rhizomatous herbaceous perennial plant of the ginger family, Zingiberaceae. It is native to tropical South Asia and needs temperatures between 20 °C and 30 °C and a considerable amount of annual rainfall to thrive...

 and paprika
Paprika
Paprika is a spice made from the grinding of dried fruits of Capsicum annuum . In many European languages, the word paprika refers to bell peppers themselves. The seasoning is used in many cuisines to add color and flavor to dishes. Paprika can range from mild to hot...

. Typically, a pearl onion
Pearl onion
The "true" pearl onion is a close relative of leek , and may be distinguished from bulb onions by having only a single storage leaf, similar to cloves of garlic...

 is used as a cocktail onion. Pearl onions are naturally sweet, which makes them an excellent pairing with many cocktails. Other sweet onions such as the crystal wax, also known as the white Bermuda, are also sometimes used. In many cases, white varieties of these sweet onions are used, since many consumers expect cocktail onions to be white. However, yellow or red sweet onions may be used as well. In northern California cuisine
California Cuisine
California cuisine is a style of cuisine marked by an interest in fusion cuisine and in the use of freshly prepared local ingredients.The food is typically prepared with strong attention to presentation...

 some haute
Haute cuisine
Haute cuisine or grande cuisine was characterised by French cuisine in elaborate preparations and presentations served in small and numerous courses that were produced by large and hierarchical staffs at the grand restaurants and hotels of Europe.The 17th century chef and writer La Varenne...

 bars may use sliced red onion
Red onion
Red onions, sometimes called purple onions, are cultivars of the onion with purplish red skin and white flesh tinged with red.These onions tend to be medium to large in size and have a mild to sweet flavor. They are often consumed raw, grilled or lightly cooked with other foods, or added as color...

 pickled in vinegar
Vinegar
Vinegar is a liquid substance consisting mainly of acetic acid and water, the acetic acid being produced through the fermentation of ethanol by acetic acid bacteria. Commercial vinegar is produced either by fast or slow fermentation processes. Slow methods generally are used with traditional...

. Some recipes also call for the onions to be packed in white vermouth
Vermouth
Vermouth is a fortified wine flavored with various dry ingredients. The modern versions of the beverage were first produced around the late 18th and early 19th centuries in Italy and France...

 as well as vinegar

Generally, the onion retains a slightly crunchy texture through the brining process, which can add a different mouthfeel to the drinking experience. Since the cocktail onion is made from a sweet onion, it is unlikely to upset the digestion with a sulfurous or eye-watering taste, although some cultures use more pungent onions as cocktail garnishes.

Use as a garnish

While not as widely used as more common garnishes such as olives or lemon twists, the cocktail onion is the signature garnish of the Gibson
Gibson (cocktail)
The Gibson is a cocktail made with gin and vermouth, and garnished with a pickled onion. The drink bears great similarity to another cocktail, the martini, with the onion garnish being the only differentiating factor.-History:The exact origin of the Gibson is unclear, with numerous popular tales...

, which consists of a standard Martini garnished with a cocktail onion instead of the standard olive.
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