Sweet and sour mix

Name Variation

 * bar mix
 * sour mix
 * sweet and sour mix

About sweet and sour mix
Sweet and sour mix is a commonly used mixer made of sugar and lemon and/or lime juices. Pre-mixed sweet and sour can be found in almost anywhere spirits are sold or it can easily be made from scratch.

Making your own
To make sweet and sour mix:

Method 1

 * 1) Combine 1 cup sugar with 1 cup water until sugar is completely dissolved.
 * 2) Add 1 cup fresh lime juice and 1 cup fresh lemon juice and refrigerate.

Method 2

 * 1) Mix 1 part sugar syrup with 1 part lemon juice.
 * 2) Optionally, add 2 egg whites for every liter of mix to make cocktails slightly foamy.

Source

 * About.com