1 oz Madeira (Rainwater)
1⁄4 oz Amaro Sibilla
20 dr Bitters, Bittered Sling Moondog
Stir, strain, up.
This will probably be better with Sercial - the older the better. It needs a bit of cut, and reducing the ginger liqueur isn't going to do it. The bitters are interesting - smoky, minty/herbal.