What is the primary mixer used in an Amaretto Sour?

The primary mixer used in an Amaretto Sour is sour mix, which typically consists of a combination of lemon or lime juice and simple syrup. This mixer provides the balance of tartness and sweetness that complements the sweet, almond-like flavor of Amaretto liqueur. The sour mix enhances the overall taste of the drink, delivering a refreshing quality that counteracts the richer sweetness of the Amaretto.

While orange juice can be a component in variations of the Amaretto Sour, it is not considered the primary mixer. Similarly, ginger ale and club soda are more common mixers for different cocktails, but they do not align with the traditional preparation of an Amaretto Sour. The use of sour mix is essential for achieving the classic flavor profile that defines this cocktail.