New Year's Eve -- a time for reflecting, a time for hoping, and a time for drinking cocktails. Champagne is a staple of New Year's Eve celebrations, and the Champagne Cocktail is a great way to use it. The cocktail originated in the United States in the 1850s. It was, and is, a simple year round cocktail.
Place the sugar cube in a champagne flute, add the bitters, then add the sparkling wine. Stir briefly if at all.
Why do I list sparkling wine as an ingredient of the Champagne Cocktail? Because you don't have to use true Champagne. All Champagne is sparkling wine, but not all sparkling wine is Champagne. Sort of like how all bourbon is whiskey, but not all whiskey is bourbon. And how all Cognac is brandy, but not all brandy is Cognac. It's all about geography.
The Champagne Cocktail lends itself to variations. For example, the sparkling wine can make a difference (use what you like and can afford). Also, you can add a half ounce of brandy and/or use Peychaud's bitters (a key part of the Sazerac) instead of Angostura bitters. If you want to use sparkling wine in a different way, try a Kir Royale. Or if you want a cocktail with a tenuous link to New Year's Eve but without sparkling wine, try a Bobby Burns (he wrote "Auld Lang Syne").
Courtesy of pop culture, the Champagne Cocktail exudes class. For example, Resistance leader Victor Laszlo drinks one in the movie Casablanca. So to paraphrase Ron Burgundy in Anchorman (a totally different character in a totally different movie), have a Champagne Cocktail and stay classy Den drinkers.