Bosom Caresser
Orange zest twist (discarded)
SHAKE all ingredients with ice and fine strain into chilled glass.
[['6 cl', 'Rémy Martin 1738 Cognac'], ['1.5 cl', 'Grand Marnier or other cognac orange liqueur'], ['1.5 cl', 'Rainwater/Verdelho med-dry madeira'], ['0.75 cl', 'Giffard Grenadine syrup'], ['1 fresh', 'Egg yolk']]
[['6 cl', 'cognac'], ['1.5 cl', 'cognac'], ['1.5 cl', 'rainwater/verdelho med-dry madeira'], ['0.75 cl', 'giffard grenadine syrup'], ['1 fresh', 'egg white']]