What is the sugar source used in a Gin Fizz?

In a Gin Fizz, superfine sugar is the preferred sugar source due to its ability to dissolve quickly and easily in the cocktail mixture. This ensures a smoother texture and a balanced sweetness without any gritty residue that can come from coarser sugars. Superfine sugar, often referred to as bar sugar, is ideal for cocktails because of its fine granules, which integrate seamlessly into the drink, enhancing the overall mouthfeel and flavor profile.

Regular granulated sugar can work but may not dissolve as readily, leading to a less refined texture. Honey and brown sugar would impart distinct flavors that might not align with the classic profile of a Gin Fizz, which is typically meant to be light and refreshing. Thus, superfine sugar supports the drink's intended characteristics more effectively than the other options.