1 3/4 cups sugar
1 tablespoon finely grated lemon zest
1 1/2 cups lemon juice (6 to 8 lemons)
8 cups cold water or sparkling water
Lemon slices and mint sprigs for garnish
In a small saucepan, heat 1 cup water until almost boiling. Remove from heat. Add the sugar and lemon zest and stir until the sugar is dissolved. Cover and refrigerate until cold.
In a pitcher, stir together chilled syrup, lemon juice and remaining 7 cups water. Serve the lemonade in a tall glass over ice. Garnish with lemon slices and mint sprigs, if desired.