- 8 cups cold water, divided
- 1 cup white sugar
- 1 1/2 cups lemon juice
- 1/2 cucumber, thinly sliced
- 10 fresh basil leaves, torn
- Combine 1 cup water and sugar together in a small saucepan; bring to a boil. Cook and stir until sugar is dissolved, about 5 minutes. Remove saucepan from heat and cool syrup to room temperature.
- Stir syrup, remaining water, lemon juice, cucumber, and basil together in a pitcher; chill in the refrigerator for at least 2 hours.