60 mint leaves (about 10 sprigs)Ice mold or large block of ice
One 750 ml bottle Moscato d'Asti, chilled
Grapefruit twists, for garnish
Directions
Combine the vodka, Grand Marnier, grapefruit juice and mint in a large pitcher. Refrigerate for at least 30 minutes. Strain through a fine-mesh sieve into a punch bowl. Add the ice and Moscato D'Asti and stir thoroughly. Ladle into chilled Champagne coupes, garnish each drink with a grapefruit twist and serve.