3/4 oz of bourbon whiskey
1 tsp of Blackberry Brandy
2 tsp of Lemon Juice
1/2 tsp of cointreau orange liqueur (or orange liqueur)
1 oz of dry vermouth
Pour the vermouth, bourbon, blackberry brandy, Cointreau and lemon juice into a cocktail shaker half-filled with ice cubes. Shake and strain into a cocktail glass, garnish with a twist of lemon, and serve.