Combine all ingredients with ice and shake in a cocktail shaker. Strain into a coupe glass and garnish with a small fresh rosemary sprig poking out of a fresh lemon wheel floating on top.
Infused Gin
Combine ingredients in a container and place in freezer for 24 hours. The next day, the olive oil will be frozen solid, but not the gin or vodka. Remove frozen oil and use the gin or vodka as directed.
Blueberry-Rosemary Syrup
Heat blueberry juice to 120 degrees F. Add rosemary and steep for a minimum of 5 minutes. Strain liquid, add same amount of sugar by volume, and blend until sugar is dissolved.