In a cocktail tin, combine all ingredients except club soda and garnishes. Shake for 15 seconds, then pour into a Collins glass filled with ice. Top with club soda and garnish with mint and lemon wheel.
Blackberry-Lavender Simple Syrup
¼ cup sugar
1 teaspoon dried lavender buds
1. In a small saucepan, combine sugar with ¼ cup water. Bring to a boil until sugar dissovles.
2. In a small bowl, muddle blackberries with lavender. Pour syrup over berry mixture and let steep for 1 hour. Strain before using.