Step 1.
- Chill the cocktail glass by filling it with ice water.
Step 2.
- In a mixing glass, add the gin, dry vermouth, sweet vermouth, and orange bitters.
Step 3.
- Fill the mixing glass with ice and stir well until chilled.
Step 4.
- Empty the ice water from the cocktail glass.
Step 5.
- Strain the mixture into the chilled cocktail glass.
Step 6.
- Garnish with a twist of lemon peel.