2 cups seedless green grapes
2 cups sugar
1 cup fresh lime juice (from about 10 limes)
8 cups club soda
1 cup gin (optional)
- Freeze grapes until firm, 1 hour. Meanwhile, in a small saucepan, stir together sugar and lime juice; bring to a boil. Simmer until sugar has dissolved and liquid is syrupy, about 2 minutes. Let cool completely, 30 minutes.
- In a punch bowl or pitcher, stir together lime syrup, club soda, frozen grapes, and (if using) gin. Serve immediately.
- Drinks, Cocktails