Surprised (and delighted) that I liked this. The 'Review' above is pretty spot on. Used Wild Turkey 101 Rye, Cocchi di Torino, and Herbsaint. Very tasty combo. I'd tone down the anise though (see my comment below).
Made this one to try out a new bottle of Herbsaint, which I'd never had before. Depending on the liqueur you use, discerning drinkers are advised to start light and gradually add the anise component until the preferred level is achieved. One teaspoon of Herbsaint turns out to be a lot. Also note that this rye-based Montreal cocktail is NOT to be confused with the rye-based Montreal Cocktail that serves as the city's official cocktail. Simon might cross-link them to minimize our confusion.
Chris, I too just used my new bottle of Herbsaint for this, and saw your comment after the fact. I found the one tsp to result in a prominent quasi dominance, but I actually liked it. My beloved Cocchi di Torino barely poked through though. Made it again, but at 1/3 the volume, and I cut the Herbsaint to 1.25 ml, and it was lost. Maybe 3.75 ml (ugh) is the ideal measure?