Ingredients:
1½ oz Gin
¾ oz sweet vermouth
½ oz lemon juice (real lemon juice from a real lemon that got itself squeezed)
½ oz simple syrup (this is just sugar and water mixed in a 1:1 ratio)
3 dashes Agnostura bitters
Shake the ever-loving life out of it, then pour over ice.
Top it off with club soda.
Garnish with a lemon peel, wheel or wedge.