
Rosso vermouth is a sweet fortified wine flavored with wormwood, herbs and spices, and the backbone of the Manhattan and the Negroni.
The closest swap, in the same amount. It carries nearly as much sugar, so the sweetness holds, but the drink turns paler and loses its dried-fruit depth. Where the color is part of the drink, as in a Manhattan, a pale swap shows at a glance.
Goes in at the same amount, plus a scant barspoon of syrup per 25 ml, since it is barely sweet. The drink turns paler too.
Bitter aromatized wine
Wine bittered with quinine or gentian, such as a quinquina or an americano, goes in at the same amount, but gives the drink a noticeable bitterness.
Opened vermouth is wine, and it oxidizes. Keep the bottle in the fridge and finish it within six weeks, before the fruit and herbal notes fade.
Bobby Burns
Blended Scotch whisky