The Gin Fizz is a classic first published in 1887 by Professor Jerry Thomas in "The Bartender's Guide". 2 Part Beefeater Gin 1/2 Part Simple Syrup 1 Part Lemon Juice 4 Part Club Soda Glass: Collins Lemon Wedge 1. Measure the gin and simple syrup into shaker. 2. Add freshly squeezed lemon juice. 3. Fill the shaker with ice and shake well. 4. Strain mixture into a Collins glass. 5. Fill the collins glass with ice. 6. Top the collins glass with soda and stir with a bar spoon. 7. Garnish with a lemon wedge.