1/2 Lemon (Juice of, fresh) (more Lemon drinks)
1 1/2 oz. Gin (more Gin drinks)
1 tsp. Sugar (more Sugar drinks)
1 Egg White (more Egg White drinks)
Seltzer Water (more Seltzer Water drinks)
Shake with ice and strain into a highball glass and fill with Seltzer Water.