Step 1

In a large pitcher (or punch bowl), stir together the pineapple juice, orange juice, and lime juice. Add fruit slices.

Step 2

Cover, and chill for at least 3 hours (or overnight.)

Step 3

To serve: In individual glasses or champagne flutes, pour 1/2 cup of the chilled juice mixture, then slightly tilt the glass and slowly add in 1/4 cup chilled prosecco. Then drizzle in 1 teaspoon Grand Marnier (recommended, but optional.)

Step 4

Garnish each glass with an orange slice and/or pineapple slice, if desired.