As with most cocktails, the origins of the Sidecar are hazy (be suspicious of those who state with certainty when or where the Sidecar was first mixed), but this entrancing mixture of brandy, lemon juice and orange liqueur started making the rounds in the most fashionable watering holes in London and Paris during the 1920s. Very simple in structure, the Sidecar is complex enough in flavor to satisfy even the most jaded palates, but not so over-the-top with mixological gewgaws as to frighten away the casual tippler.
'lemon juice' on Serious Eats
Fizzes were introduced as morning drinks in the 19th century, eye-opening hangover remedies with the added benefit of a bit of egg white to help it all go down. It's simply a Tom Collins chilled and shaken with egg white, served without ice (fizzes are designed to be consumed fairly quickly, not lingered over for a half-hour).