25ml Grand Marnier
15ml Fresh Orange Juice
20ml Fresh Grapefruit Juice
15ml Fresh Lime Juice
10ml Sugar Syrup
2 dashes Cardamom Bitters
Prosecco to top up


Shake all the ingredients except the Prosecco in shaker with ice
Fine strain into a champagne flute
Top up with Prosecco
Garnish with a grape