Pisco Sour
Lima's grape-brandy sour under a cap of foam and bitters
Peru's national cocktail: pisco, fresh lime, simple syrup and egg white, shaken without ice and then with it, strained up and finished with drops of aromatic bitters on the foam.
Country
One drink is tied to Chile. The label on each says how: where it began, what the country is known for, what people drink there, or where the origin is disputed.
Associations are editorial judgements. The evidence link shows the source used.
Chile's claim rests on a mid 1980s newspaper report that an English steward named Elliot Stubb invented the drink in Iquique in 1872; Difford's shows the quotation was about a Whiskey Sour. Chile does make pisco under its own rules, from Muscat grapes with water added, and the two countries have argued over the name since the 1960s. Contested, with the evidence favoring Peru.
Confidence: mediumEvidence: diffordsguide.com (opens in a new tab)
Map data: Natural Earth, public domain.