Buying a liter of vermouth is not that different from buying a gallon of milk: if you don't have a house full of thirsty drinkers, you're better off sizing down.
'Carpano Antica' on Serious Eats
An easy-drinking Irish whiskey cocktail from Steven Weiss of Craftbar in NYC.
This cocktail is tart, lemony, refreshing and strong. The lemon accentuates the fresh-apple flavor of the apple brandy.
McCarthy's take on a Manhattan makes use of green chartreuse; "The Jacobeans always sided with the French, so my chartreuse drink is named for them." AnCnoc is stirred with Carpano Antica ("the more savory of the sweet vermouths"), a half-ounce of green chartreuse, and a good measure of ice.
This smooth drink is a variation on the Perfect Gin Manhattan (made with half French vermouth and half Italian), but features rich, slightly sweet Old Tom gin. Jason Littrell of Jbird Cocktails in NYC named the drink after Rachel Maddow, in the hope that she'd swing by the bar.
This smoky cocktail is smooth, potent, and perfectly in balance.