Ingredients:
- Dark rum
- Light rum
- Lime juice
- Simple syrup
- Dry vermouth
- Orange bitters
Instructions:
- Muddle the lime juice and simple syrup in a shaker.
- Add the dark rum, light rum, dry vermouth, and orange bitters to the shaker.
- Fill the shaker with ice and shake for about 15-20 seconds.
- Strain the mixture into a chilled glass filled with ice.
- Garnish with a lime wheel or wedge.