A 1930s Harry Craddock creation from the Savoy Hotel, the White Lady is a sophisticated gin sour — silky from egg white, bright from lemon, with Cointreau's orange lifting it beautifully.

• Gin4 cl
• Cointreau2 cl
• Fresh lemon juice2 cl
• Egg white1

1. 1Combine all ingredients in a shaker without ice.
2. 2Dry shake for 10 seconds to emulsify the egg white.
3. 3Add ice and shake again vigorously for 15 seconds.
4. 4Double-strain into a chilled coupe glass.
5. 5Garnish with a lemon twist.