This one which was created as a variation on the Red Hook has an everything-but-the-kitchen sink approach, but it works very well. It is spicy and interesting, with a long finish from the Chartreuse which reminded me of another favorite Manhattan variation, the Greenpoint.
Red Head (Mathias Alsen via Gaz Regan) with Wild Turkey 101 rye whiskey, Pierre Ferrand 1840 cognac, Martini Gran Lusso sweet vermouth, Campari, Luxardo maraschino liqueur, Averna, green Chartreuse.