Sour mix is a type of cocktail mixer made from water, sugar, and either citrus juice or vinegar. It is used to make sour cocktails, such as the margarita and the daiquiri. Sour mix is easy to make and can be tailored to your own taste.

To make sour mix, start by combining 1 cup of water with 1 cup of sugar in a saucepan. Bring the mixture to a boil, then reduce the heat to low and simmer for …