Pickled onion: 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 an essential component of the Martini cocktail variant known as a Gibson. Pickled onions are usually pickled in malt vinegar and the onions are about 25 millimetres (1 in) in diameter. Silverskin onions are pickled in white vinegar, and are much smaller. Full sized onions, e.g., Spanish onions, can be pickled if sliced first.
Gin: Gin is a distilled alcoholic drink that derives its predominant flavour from juniper berries (Juniperus communis). Gin originated as a medicinal liquor made by monks and alchemists across Europe, particularly in southern France, Flanders and the Netherlands, to provide aqua vita from distillates of grapes and grains. It then became an object of commerce in the spirits industry. Gin emerged in England after the introduction of jenever, a Dutch and Belgian liquor that was originally a medicine. Although this development had been taking place since the early 17th century, gin became widespread after the William of Orange–led 1688 Glorious Revolution and subsequent import restrictions on French brandy.