Ingredients: Served: Served in one of two ways:\nStraight up (no ice) in a chilled cocktail glass\nOn the rocks (over ice) in a traditional clay or terracotta mug. Drinkware: Cocktail glass. Method: Pour all ingredients into shaker with ice cubes. Shake vigorously. Strain into chilled cocktail glass, or "on the rocks" into a traditional clay or terracotta mug. 3 cl Mezcal (espadín), 1.5 cl Jamaica overproof white rum, 1.5 cl Falernum, 1 barspoon maraschino Luxardo, 2.25 cl fresh lime juice, 1.5 cl simple syrup, Few drops of egg white (optional)