Prep Glass: Fill a Martini or Coupe glass with ice. Give it a quick stir and set it aside.
Add Bitters: Pour 2 dashes of orange bitters into the stirring glass.
Add Lillet: Measure and pour ½ oz Lillet Blanc into the mixing glass.
Add Quinquina: Add ½ oz Blanc Quinquina or Kina.
Add Sherry: Add 1 oz Manzanilla Sherry as well.
Add Gin: Finally, add 1 oz London Dry Gin to the mix.
Add Ice and Stir: Fill the mixing glass with ice. Using a bar spoon or a long stirrer, stir well (for about 15-20 seconds). Give it a taste and stir a bit more if you feel like more dilution is necessary.
Strain: Take your Martini glass or cocktail coupe and discard the ice inside. Using the cocktail strainer, strain the mixture into the chilled glass.
Garnish: Garnish with a lemon zest twist: to do so, express the lemon zest on top of the drink and place it on the rim of the glass or drop it directly inside. Serve immediately.