The Best Cognac for a Sidecar: Why VSOP Beats VS and XO

Use a VSOP. A Sidecar is cognac, orange liqueur and lemon juice, and because two of those three ingredients are loud, the cognac has to be old enough to keep its shape against them, which a young VS usually is not. An XO, meanwhile, costs several times as much and loses most of what makes it expensive the moment lemon juice touches it.

That is the short answer. The longer one depends on what the age statements on a cognac label actually guarantee, and on how the ratio you choose changes the amount of work the spirit is asked to do.

What VS, VSOP and XO mean

Cognac is grape brandy made in a delimited region of western France, distilled twice in copper pot stills and aged in French oak, and its age grades are legal minimums rather than marketing adjectives. Each grade is defined by the youngest eau-de-vie in the blend, which means a bottle can contain much older spirit but never younger.

The two extra years between VS and VSOP matter more than the numbers suggest, because the early years in cask are when spirit picks up the most color, tannin and vanillin from the wood, and those compounds are exactly what lets cognac register as cognac rather than as generic warmth under a mouthful of sour orange. An XO, by contrast, earns its price through slow oxidation over a decade or more, which produces subtle aromatics that belong in a snifter where nothing competes with them.

Bartenders tend to reach for bottles built with mixing in mind, such as Pierre Ferrand 1840, which was designed around cocktail use, or the VSOP expressions from the large houses, which are consistent and widely stocked. Any well-made VSOP will do the job, and the difference between two competent VSOPs in a Sidecar is smaller than the difference made by squeezing your lemons fresh.

Cognac, brandy, or armagnac

Brandy is the umbrella term for any spirit distilled from fermented fruit, usually grapes, and much American and Spanish brandy is lighter or sweeter than cognac, which shifts the drink toward something closer to an orange sour. That is not wrong, and older recipes often simply say brandy, which is why the database holds both a cognac Sidecar and a Sidecar Cocktail written with generic brandy and Cointreau.

Armagnac, from Gascony to the south, is traditionally run through a single continuous column still at lower strength, which leaves more fruit and a rustic, slightly earthy character in the spirit, so an armagnac Sidecar tastes earthier and a little wilder. Calvados, the apple brandy of Normandy, works on the same logic and produces something autumnal, though once you add grenadine you are drinking a Jack Rose instead. A broader survey of the category sits in our guide to what to mix with brandy.

The ratio, and why it moved

The earliest printed Sidecars in the early 1920s used equal parts of brandy, orange liqueur and lemon, which produces a sweet-tart drink in which the spirit is only a third of the liquid and therefore a supporting player. By 1930 the Savoy Cocktail Book was printing two parts brandy to one each of Cointreau and lemon. That 2:1:1 ratio, which is what the Classic Sidecar in our index follows, has become the modern default for a simple reason: doubling the base spirit means the cognac you chose is actually what you taste.

A practical spec is 2 oz cognac, 3/4 oz Cointreau and 3/4 oz fresh lemon, shaken hard for about ten seconds and strained into a chilled coupe. Trimming the modifiers slightly below a strict 2:1:1 keeps the cognac in front once dilution has done its work. Equal parts are still worth trying with a VS, since a young spirit benefits from the extra sugar, while an older cognac generally wants the leaner build. Some modern versions, such as the Updated Sidecar, add a little simple syrup back, which is a reasonable correction if your lemons are particularly sharp.

Cointreau or triple sec

Cointreau is a triple sec, but it is bottled at 40% ABV, while many inexpensive triple secs sit well below that and carry more sugar, which means swapping one for the other changes both the sweetness and the strength of the finished drink. The house B And G Sidecar is written with plain triple sec, and it works, though the orange tastes more like candy and less like peel. Grand Marnier, a cognac-based orange liqueur, is heavier and pushes the drink toward richness, which suits the bourbon variations below. Our Cointreau cocktails roundup covers where else the bottle earns its keep.

Rim it, or don’t

The sugared rim arrived later than the drink itself, probably borrowed from the older Brandy Crusta, and it serves a functional purpose, because each sip delivers a small dose of sugar that softens the lemon’s acidity at the lip without sweetening the whole glass. Rim only half the glass, which lets the drinker choose, and use superfine sugar applied to a rim moistened with a lemon wedge, since coarse sugar falls into the drink and gritty granules on the tongue undo the point. The Brandy Crusta, with its maraschino and long lemon peel, is worth making once simply to see where the Sidecar came from.

When the base is not cognac

A Bourbon Sidecar keeps the same 2:1:1 structure and trades grape fruit for corn sweetness and vanilla, a profile that pairs particularly well with Grand Marnier. The Fontainebleau Sidecar makes the point by using both triple sec and Grand Marnier alongside the whiskey. Gin produces the brighter Chelsea Sidecar, and a split base of brandy and rum yields Between the Sheets, which is stronger than it tastes. Further cognac-led drinks are collected in our cognac cocktails list, and if you would rather know which of these your current bottles already cover, CocktailBuilder can match them against your shelf.

Last modified on October 11, 2026