
Carpano Antica Formula is a branded Italian sweet (rosso) vermouth, an aromatized, fortified wine flavored with Artemisia and botanicals from a historic Carpano recipe.
Another rich sweet vermouth works one for one. Cocchi Vermouth di Torino is the closest. It is a little sweeter, about 214 g of sugar per liter against Antica's 170, so ease off any syrup. Martini Rosso or Dolin Rouge also go one for one but are lighter and drier, at about 153 and 130 g of sugar per liter. They lack Antica's vanilla. Punt e Mes also goes one for one but adds a bitter edge.
Pale and low in sugar where Antica is dark and sweet. One for one, the drink comes out drier and thinner; a barspoon of rich syrup softens it.
It oxidizes once opened. Refrigerate and use it within six weeks, or the aromatics fade.
Negroni Flip
London dry gin, Red bitter, Carpano Antica Formula vermouth