2/3 cup sugar
2/3 cup water
1 cup grapefruit juice
1/2 cup orange juice
3 tablespoons grenadine
28 ounces chilled ginger ale

Combine sugar and water in a saucepan over low heat. Stir until sugar is dissolved. Bring to boil and boil ten minutes. Cool.

Add sugar syrup to grapefruit and orange juices. Chill thoroughly.

Add grenadine and ginger ale just before serving.

Makes about 1 1/2 quarts.