Ingredients:

Ingredients:
- 60 ml Château de Laubade X.O. Armagnac
- 15 ml Cointreau
- 15 ml lemon juice
- 1 dash Angostura bitters
- 1 egg white
- 1 lemon twist, for garnish

Instructions:
1. In a cocktail shaker, combine the Château de Laubade X.O. Armagnac, Cointreau, lemon juice, Angostura bitters, and egg white.
2. Dry shake (without ice) vigorously for 10-15 seconds to emulsify the egg white.
3. Add ice to the shaker and shake again for 10-15 seconds to chill and dilute the cocktail.
4. Strain into a chilled coupe glass.
5. Garnish with a lemon twist and serve.