I have a new favorite cocktail and it's old, like real old. Named after the longest running Broadway show of its era, the Adonis has been around since the mid-1880s. It's so old that no one knows the original recipe (we know the break down: dry sherry, sweet vermouth, and orange bitters) but no one knows which dry sherry they originally used. So everyone just uses their favorite.
I've spotted the cocktail (or something similar) at a few different spots in DC. It seems to be a regular feature at Barmini and Mockingbird Hill (where I also learned about the drink's history). Every time I order it, I love it (then bore everyone around me with a rambling speech about how great sherry is). Sherry is really great, guys.
1 part dry Sherry
1 part sweet vermouth
few drops orange bitters
Mix sherry, vermouth, and bitters over ice. Serve straight up. Garnish with orange peel.