Frozen Slush - cooking recipe

Ingredients

1 can unsweetened pineapple juice (24 oz.)
2 c. orange juice
1/4 c. lemon juice
1 c. water
1 c. sugar
2 qt. 7-Up

Preparation

Bring water and
sugar
to a boil, then add the juices. Freeze for at
least
12 hours.
When ready to serve, put some slush in a glass and pour 7-Up over it.