2 oz. Gin - (more) 1 Egg White - (more) 1 tsp. Grenadine - (more) 1 oz. Lemon Juice (Fresh) - (more) 1 tsp. Superfine Sugar - (more) Sparkling Water - (more)
Shake vigorously with cracked ice and strain over ice cubes into a highball glass. Fill with sparkling water and stir.