A drink that engages the nose as much as the palate — the herbal smoke hits before the first sip does.
If using a smoking gun, char the rosemary sprig lightly and capture the smoke under a cloche or inverted glass over the finished drink for about 30 seconds before serving. If you don't have smoking equipment, gently torch the rosemary sprig for a few seconds to release its oils, then use it as the garnish — you'll still get a nice aromatic lift.