SHAKE first four ingredients with ice and fine strain into ice-filled glass. TOP with champagne.
This old classic is basically a Honeysuckle served long and topped with champagne, rum, honey and a touch of citrus freshness make this one of the better champagne cocktails.
Adapted from a classic recipe, which first appears in the 1949 Esquire's Handbook for Hosts. This is a potent drink and the name could be a reference to airmail being the quickest way of getting a letter from A to B.