Cognac

When the Two-Dollar Cocktail was so named, over a half century ago, the amount of cash in question was a substantial sum. The French brandy  — Cognac, if you like  — certainly contributes to its value.

Vanilla-accented Cognac adds a twist to the traditional Kir Royale (an aperitif made with Champagne and crème de cassis). Prepare the Cognac-vanilla mixture at least one day ahead so that the flavors can mingle. Have extra bottles of Champagne on hand for a second go-round.

Can be prepared in 45 minutes or less.