The Shaken Martini
1 cocktail
Adapted from The Martini Cocktail: A Meditation On the World’s Greatest Drink, with Recipes by Robert Simonson.  While the recommended gin is Gordon’s in the original recipe, you can use any type of London dry gin. This martini is shaken to make it as cold as possible. If you favor a stirred martini, be my guest
3 1/2 ounces London dry gin (see headnote)
1/2 ounce dry vermouth, preferably Dolin
1 green olive, cocktail onion, or lemon twist, for garnish
1. Add the gin and vermouth to a cocktail shaker.
2. Fill the shaker with ice and shake vigorously until well-chilled, about 15 seconds. Strain into a chilled cocktail glass and garnish with an olive, onion, or lemon twist.