2 c. sugar
9 c. water
1 (12 oz.) frozen orange juice
12 oz. lemon juice
2 c. gin
7UP

In a large saucepan, bring sugar and water to a boil; reduce heat and simmer for 15 minutes. Let cool and add juices and gin; freeze.

To serve: fill a glass half full with gin fizz and other half with 7UP.