01 -
Roll the limes on the counter to loosen the juice. Cut and squeeze them until you have 3/4 cup fresh lime juice.
02 -
Pour the lime juice into a pitcher. Add the brown sugar, ginger if using, and salt, then stir for 1-2 minutes until the sugar mostly dissolves.
03 -
Stir in the cold water. Taste and adjust with more brown sugar, lime juice, or water until the drink is tart, sweet, and balanced.
04 -
Refrigerate for at least 20 minutes if time allows. Strain if you want to remove ginger fibers or pulp.
05 -
Fill glasses with ice, pour in the lemonade, and garnish with lime slices and mint if desired. Serve cold.