Sidecar (cocktail) base rather than rum, and with Cointreau as the sweetening agent rather than sugar syrup. He recommends the same proportions (8:2:1) for both, making a much-less-sweet sidecar. However, Simon Difford, in his book "Encyclopedia of Cocktails", notes Harry Craddock's ratio of 2:1:1 in "The Savoy Cocktail Book", and then suggests a middle ground between Craddock's recipe and the "French School" equal parts recipe of 3:2:2, calling Embury's daiquiri formula "overly dry" for a sidecar. The earliest mention of sugaring the rim on a sidecar glass is 1934, in three books: Burke's "Complete Cocktail & Drinking Recipes", Gordon's "Cocktail & Food
Oxygen cocktail of filling the cocktails with oxygen have been improved. Juices (grape, cherry, raspberry, etc.), syrups, water, milk and fruit-drinks are often used as the base of the cocktail. Oily and sparkling liquids result in poor homogeneity of the foam. The base liquid might contain extracts of plants and herbs such as hawthorn, strawflower, motherwort and rose hip, which themselves are used in the clinical practices. An essential element of the oxygen cocktail is the foaming agent, such as gelatin egg white or liquorice. Initially, oxygen cocktails were made with egg white. However clinical trials proved that this ingredient resulted in