Blueberry Tonic Ingredients $ 2 Tablespoons Spiced Blueberry Simple Syrup $ 2 Ounces Mailroom Vodka $ Tonic Water Diet or Regular $ Garnish: Fresh Blueberries, Thyme, Cinnamon Sticks Directions $ In a glass filled with ice, add 2 tablespoons spiced blueberry simple syrup and 2 oz Mailroom Vodka. $ Stir gently to combine. $ Top with tonic water. $ Garnish with fresh blueberries, a sprig of thyme, and a cinnamon stick.