Perfect Manhattan

It means the vermouth is split half sweet and half dry. Nothing to do with quality. The same convention gives you a Perfect Martini and a Perfect Rob Roy, and it's one of the few pieces of old bar shorthand that survived intact onto modern menus.

Both are defensible and the split vermouth is why. Dry vermouth pulls the drink toward citrus and herbs, which a twist of lemon flatters. The cherry is the inherited garnish and leans on the sweet side. Plenty of bars serve a twist here and a cherry on the standard version.

Something restrained on the sweet side, since it only has 15 ml to say its piece. Cocchi Storico or Martini Riserva Rubino pair cleanly with Dolin Dry. Carpano Antica is a poor choice here despite being excellent elsewhere, because its vanilla swamps the dry half and you lose the reason for splitting at all.

Barely different. The vermouth still totals 30 ml either way, and dry vermouth runs about a point lower in alcohol than sweet, so the number in the glass hardly moves. It tastes stronger because the sugar drops, and sweetness is what usually disguises proof.

You can, and it comes out softer and rounder. Rye is the better match because its pepper gives the dry vermouth something to push against, where bourbon's sweetness fills the gap the split was meant to open. If you use bourbon, tilt the vermouth toward dry, say 18 ml to 12.

A classic Perfect Manhattan calls for 60 ml (2 oz) Rye whiskey, 15 ml (0.5 oz) Sweet vermouth, 15 ml (0.5 oz) Dry vermouth, 2 dashes Angostura Angostura bitters. That single-serve spec scales cleanly — the recipe above converts it to oz and multiplies it for 2–4 drinks.

A standard Perfect Manhattan is roughly 36% ABV once mixed (before ice melt softens it further). That makes it spirit-forward — closer to a Martini than to a beer, so sip it slowly.