London Calling

Use 2:1 rich simple syrup for its listed portion.

Chill a cocktail coupe to ensure your drink stays perfectly cool.

Prepare a twist of grapefruit zest to use as a garnish.

Vigorously shake the Hayman's London Dry Gin, Lustau Jarana Fino Sherry, freshly squeezed lemon juice, rich sugar syrup, and a couple of dashes of Angostura Orange Bitters with ice.

Fine strain the mixture into the chilled coupe glass.

Express the grapefruit zest twist over the cocktail, then use it as a garnish to finish.