Ingredients
2-1/4 cups sugar5 cups water, divided1 tablespoon grated lemon zest1-3/4 cups lemon juice1 cup light rum or vodka6 to 8 cups ice cubesGARNISH:Lemon slices
Preparation
In a large saucepan, combine the sugar, 1 cup water and lemon zest. Cook and stir over medium heat until sugar is dissolved, about 4 minutes. Remove from the heat. Stir in lemon juice and remaining water. Pour into a 2-qt. pitcher; refrigerate until chilled.
Stir in rum. For each serving, place 3/4 to 1 cup ice in a Collins or highball glass. Pour lemonade mixture into glass. Garnish with lemon slices as desired.