Place 1 pc of grapefruit zest, 0.1 oz of rosemary, and 0.3 oz of sugar syrup into the shaker
Pour in 0.7 oz of lemon juice, 0.3 oz of quail egg white, and 0.7 oz of silver tequila
Add 2 dashes of orange flower water and 2 oz of fino sherry and gently shake without ice
Fill the shaker with ice cubes and shake one more time
Pour through a strainer and sieve into a cocktail glass
Garnish with an orange wheel and a thyme sprig on a clothespin