9 c. water
2 c. sugar
12 oz. lemonade concentrate
12 oz. orange juice concentrate
2 c. vodka
Seven-Up

Boil water and sugar, then simmer 15 minutes. Cool. Add the lemonade and orange juice and vodka. Put in freezer. Makes 1 gallon. Add 1/4 cup 7-Up to each slush when serving.