Option 1:
Into a shaker put:
1 Part Avion Silver
1/2 Part Starfruit Syrup
1 1/2 Orange Juice
Preparation:
Shake all the ingredients with ice, empty the liquid into a champagne glass, top with Champagne Mumm.
Option 2:
Method: Build
Into a champagne glass put:
1/2 part Avion Silver
1/2 part Starfruit Syrup
1 1/2 Orange Juice
Preparation:
Mix all the ingredients and top with Champagne Mumm.