Grapefruit Sparkler

Directions

1. 1
   In a small saucepan, combine 1 cup water with the sugar and star anise; bring to a boil, stirring occasionally, until the sugar has dissolved.
2. 2
   Remove the pan from the heat; let cool completely.
3. 3
   Pour the mixture through a fine sieve into a measuring cup (to yield 1 cup); discard the star anise.
4. 4
   Cover the syrup with plastic wrap, and chill.
5. 5
   In a large pitcher, combine the grapefruit juice, Campari, and chilled syrup.
6. 6
   Divide among 8 glasses; top with champagne.
7. 7
   Serve immediately.