Gin Sour(Replace London dry gin with Gin, and Grapefruit juice with Lemon juice)
John Collins(Replace Grapefruit juice with Lemon juice and add Club soda)
Bee's Knees(Replace London dry gin with Gin, Simple syrup with Honey syrup, and Grapefruit juice with Lemon juice)
Gimlet · via With fresh lime(Replace London dry gin with Gin, and Grapefruit juice with Lime juice)
South Side(Replace London dry gin with Gin, and Grapefruit juice with Lemon juice; add Mint)
Tom Collins(Replace London dry gin with Old Tom gin, and Grapefruit juice with Lemon juice; add Club soda)
Gin Basil Smash(Replace London dry gin with Gin, and Grapefruit juice with Lemon juice; add Basil)
Clover Club · via The older way(Replace Simple syrup with Raspberry syrup, and Grapefruit juice with Lemon juice; add Egg white)
Alabama Fizz(Replace London dry gin with Gin, and Grapefruit juice with Lemon juice; add Mint and Club soda)
French 75(Replace London dry gin with Gin, and Grapefruit juice with Lemon juice; add Sparkling wine)
White Lady(Replace Simple syrup with Rich sugar syrup, and Grapefruit juice with Lemon juice; add Triple sec and Egg white)
Pisco Sour(Replace Grapefruit juice with Lime juice, and London dry gin with Pisco; add Egg white)