Grapefruit Spike

Ingredients:
2 cups pink grapefruit juice
8 ounces orange liqueur, such as Grand Marnier or Cointreau
1 bottle chilled sparkling wine

Directions:
Combine grapefruit juice and orange liqueur in a tall pitcher, and stir. Cover and refrigerate until ready to use.
To make the cocktail, add 3 ounces of the grapefruit mixture to each of 8 champagne glasses.
Divide sparkling wine evenly among the glasses. Serve.