Step 1.
- Chill a cocktail glass by filling it with ice water.
Step 2.
- In a mixing glass, combine equal parts gin and dry vermouth.
Step 3.
- Add ice to the mixing glass and stir gently for about 30 seconds.
Step 4.
- Empty the cocktail glass of ice water and strain the mixture into the chilled glass.
Step 5.
- Garnish with a twist of lemon peel.