I found this recipe on the Ultimate Bar.
3 cups sugar
2 cups fresh lemon juice
2 cups fresh lime juice
- Combine water and sugar in large saucepan. Stir over medium heat until sugar dissolves. Bring to boil. Cool syrup.
- Mix syrup, lemon juice and lime juice in pitcher. Chill until cold. (Can be made 1 week ahead. Cover; keep chilled)