Fill a highball glass to the top with ice cubes
Pour 0.75 oz of quail egg white, 0.75 oz of grapefruit juice, 0.75 oz of cherry liqueur, 1 oz of silver tequila and 1 oz of Scotch whisky into a shaker
Give it a good dry shake
Fill the shaker with ice cubes and shake again
Strain into the highball glass
Top up with champagne and stir gently